Question 1

What Saily referral code should I use?

Accepted Answer

Use referral code JIMMYU6940 during Saily checkout, or start from the referral link on this page.

Question 2

How much does the Saily code save?

Accepted Answer

Saily's referral terms: US$5 off a standard plan or US$10 off an Ultra plan on a USD account (€4/€8 EUR, £4/£8 GBP), first purchase only, on plans of at least US$5.60, €5 or £4.50.

Question 3

Is the Saily offer cash?

Accepted Answer

No. It is a checkout discount on a Saily eSIM data plan, not cash or cashback.

Question 4

Should I buy Saily just for the discount?

Accepted Answer

Only if the destination, data allowance, expiry and eSIM compatibility fit your actual travel needs.

Question 5

What Airalo referral code should I use?

Accepted Answer

Use referral code JIMMY2336, or start from the referral link on this page: it opens Airalo's sign-up page with the code attached.

Question 6

How much is the Airalo referral discount?

Accepted Answer

Airalo's Refer and earn page says US$3 off your first purchase, shown as £2.50 when you pay in pounds. Only one discount method works per order, so it can't be combined with Airmoney or another code.

Question 7

Is the Airalo reward cash?

Accepted Answer

No. It is a discount on your first Airalo eSIM purchase, not withdrawable cash.

Question 8

Does Airalo work on my phone?

Accepted Answer

You need an unlocked phone that supports eSIM. Many iPhones bought in Hong Kong, Macao and mainland China have none, so check Airalo's device list, or dial *#06# for an EID, before buying a data pack.

Question 9

Where do I enter the code?

Accepted Answer

Use this page’s link, select 被推薦人, and enter KWOKCWJ03554 in 優惠編號 before submitting the order.

Question 10

How much credit do I receive?

Accepted Answer

HK$400 for 24-month broadband, HK$150 for 24-month mobile, and HK$100 or HK$50 for 24- or 12-month streaming plans. A bundle receives the higher credit only.

Question 11

When will the credit be applied?

Accepted Answer

Within 8 weeks after the service is activated and the first bill is paid.

Question 12

Which Google Fi referral code should I use?

Accepted Answer

Use M0APFR through the referral link on this page. The link applies the code automatically at checkout; if it does not appear, enter M0APFR in the promo code box on that checkout page.

Question 13

What reward does the Google Fi referral offer provide?

Accepted Answer

Google Fi's official Referrals page lists US$60 in bill credit. You must activate an eligible new full-service plan within 30 days of checkout, maintain 30 consecutive days of active service and pay the first bill in full. The credit is then applied automatically to subsequent Fi bills.

Question 14

Can someone living in Hong Kong or the UK use Google Fi?

Accepted Answer

Generally, no. You must meet the US residency requirements, have a physical US primary residential address, activate in the US and use Fi primarily there. Visiting the US does not by itself make you eligible. International roaming on eligible US Fi plans is intended for trips abroad, not permanent overseas residence; extended overseas use may lead to data roaming being suspended.

Question 15

Can I receive the US$60 as cash or use it to buy a phone?

Accepted Answer

No. It is credit towards Google Fi service bills, covering data, calls, texts and device protection charges. It cannot pay for phone purchases or financing, be transferred to another person or be redeemed for cash.

Question 16

What JetFi Mobile invite code should I use?

Accepted Answer

Type invite code 8emhjb when you register by email in the JetFi Mobile app. Our link opens a general download page and doesn't fill in the code for you.

Question 17

What do I get with the JetFi invite code?

Accepted Answer

A voucher for one free eSIM (1GB, 500MB or 300MB for 24 hours, depending on the destination) and a 30%-off coupon for JetFi's eSIM store. Redeem the eSIM by 23:59 on 31 December 2026; the coupon expires the same day.

Question 18

Is JetFi Mobile available in English?

Accepted Answer

Yes. JetFi says the app is in English, Traditional Chinese and Japanese. Only the invite page and the free eSIM terms are in Chinese.

Question 19

What GigSky code should I use?

Accepted Answer

Enter code JIMB150 in the referral code field when you create your account, or sign up from the referral link on this page. It can't be added after sign-up.

Question 20

How much does the GigSky code save?

Accepted Answer

25% off your first data plan purchase, applied once your email is verified. Only one discount applies per purchase, so a bigger discount you qualify for replaces it.

Question 21

Is the GigSky discount cash?

Accepted Answer

No. It is a percentage discount on your first eSIM plan purchase, not cash or cashback.

Question 22

What do I get through the Global YO link?

Accepted Answer

Global YO's in-app invite screen says that when you join through our link and buy your first data plan, you get 1,000 YOYO$, shown as $10. You spend them on later data plans and discounts, up to the cap on each plan screen; the live app terms decide the final amount.

Question 23

What are YOYO$ worth?

Accepted Answer

Google Play puts 100 YOYO$ at US$1, though Global YO's terms call any value shown an estimate. They mainly discount data plans, up to the cap on each plan screen.

Question 24

Can I cash out YOYO$?

Accepted Answer

Not as a rule. Eligible users in places Global YO and Bancus have approved can move them to a Bancus Visa card (minimum 1,000 YOYO$, 4% fee). Whether the UK or Hong Kong qualifies isn't confirmed, so treat YOYO$ as a discount on your next plan.

Question 25

How do I get the Rebtel US$10 invite credit?

Accepted Answer

Sign up through our invite link on the web page it opens, then buy at least US$5 of pay-as-you-go credit. Rebtel's help centre says the US$10 is added once your first payment goes through. You must be new to Rebtel, and free trials don't count.

Question 26

Can I withdraw the Rebtel credit as cash?

Accepted Answer

No. It's Rebtel Credits for international calls and mobile top-ups, and it can't be cashed out, refunded or transferred.

Question 27

What can I use the Rebtel credit for?

Accepted Answer

Calls to mobiles and landlines abroad, or mobile top-ups to more than 150 countries. It doesn't cover emergency calls, and top-ups can't go to UK or Hong Kong numbers.

Question 28

When does the Rebtel credit expire?

Accepted Answer

Rebtel's help centre says credit lasts until 12 months of account inactivity, but its terms give referral credit its own expiry, and another help article says gift minutes normally last 30 days. Check the date under Services > Expiring Free Credits in the app and use it soon.

Question 29

What Roamless referral code should I use?

Accepted Answer

Use referral code JIMMYQZD in the app within 30 days of creating your account, or start from the referral link on this page.

Question 30

How do I get the Roamless US$5 credit?

Accepted Answer

Enter JIMMYQZD in the app within 30 days of creating your account, then buy at least US$5 of credit or a data plan within 30 days of signing up. Roamless's help centre says you then get US$5 of credit.

Question 31

Does Roamless data expire?

Accepted Answer

Data plans last 30 days from first use, and Unlimited plans end after the days you bought. Roamless says credit, including referral credit, has no expiry date, but its terms let it cancel credit after 12 months of inactivity, and deleting your account deletes it.

Question 32

What Kolet promo code should I use?

Accepted Answer

Enter referral code GETQUIDS in the “+ Add a promo code” field at checkout in the Kolet app.

Question 33

How much does the Kolet code save?

Accepted Answer

Kolet's refer-a-friend page says new customers get US$3 off their first plan. Kolet states it in US dollars, so check the order summary if you pay in pounds or euros.

Question 34

Why is my Kolet referral code not working?

Accepted Answer

The usual reasons: you have bought from Kolet or claimed its free 1GB gift before, you are ordering on the website instead of in the app, the plan is for your home country, or another promo code is already on the order. Only one promo code works per order.

Question 35

What is the Yolla promo code?

Accepted Answer

The code is A7T8I9. Open the invitation link on this page using your phone to install and register. If the code is not applied automatically on the payment screen, enter A7T8I9 in the app menu's Get bonus / Bonus section before topping up.

Question 36

How much free call credit can I receive?

Accepted Answer

Yolla's official Free Credits page states that US$3 is added to your balance after your first Yolla payment. Its FAQ states that only top-ups of US$4 or more count towards a referral. The credit is for calls and cannot be refunded, transferred or exchanged for cash.

Question 37

Can Yolla be used in the UK and Hong Kong?

Accepted Answer

Yes. Yolla is available through the UK and Hong Kong App Stores and Google Play and supports calls to numbers worldwide. Calls require Wi-Fi or mobile data; check the destination rate and any data charges under your network plan.

Question 38

What do I get for signing up?

Accepted Answer

A $10 USD Amazon gift card under the "Give $10, Get $10" programme, once you sign up through the referral link and pay at checkout. It is an Amazon gift card, not cash or account credit.

Question 39

When does the gift card arrive?

Accepted Answer

Rewards usually post to your account about 24 hours after a qualifying sign-up, but Anytime Mailbox says it can take up to two weeks.

Question 40

Is there a catch to keep the reward?

Accepted Answer

The qualifying sign-up has to include payment at checkout, and the account must stay a paying Anytime Mailbox customer for at least three months. Cancelled, refunded or reversed transactions do not count.

Question 41

What is Anytime Mailbox?

Accepted Answer

A virtual mailbox service that gives you a real street address at 2,000+ locations (1,937 in the US). Your mail is received, photographed and uploaded, and you can open and scan, forward or shred it from the app or web portal.

Question 42

Do I have to sign up through the referral link?

Accepted Answer

Yes, for the reward to be attributed. The link opens the Anytime Mailbox referral programme sign-up so the "Give $10, Get $10" reward can be credited.

Question 43

How do I claim the invitation coupon?

Accepted Answer

After registering, enter FRD9167B3F3 under My Account → Coupons → Enter Code to Redeem. Do this before your first rental and check that the coupon is present.

Question 44

How much will the coupon save?

Accepted Answer

Its value and expiry are not publicly listed. Check the app coupon’s amount, deadline and station restrictions before confirming a rental; it is not cash.

Question 45

What does rental cost in Hong Kong?

Accepted Answer

The general rate is HK$8/hour, capped at HK$30/day, with station exceptions. Non-credit-card payment generally requires a HK$198 deposit; request its refund manually after returning the power bank, allowing up to 14 days.

Question 46

What Eskimo referral code should I use?

Accepted Answer

Sign up with referral code CWJK257, or use the referral link on this page. If it didn't go in, Eskimo's referral page says you can add it within 24 hours of signing up.

Question 47

Is the Eskimo 500MB really free?

Accepted Answer

Yes. Eskimo's referral page says the 500MB is credited when you sign up, with no purchase or card details. When it runs out the connection stops; you aren't charged automatically.

Question 48

How long is the free Eskimo data valid?

Accepted Answer

Eskimo's terms give data plans no expiry date. But if your account holds data and has no connection, data use, purchase or transfer for more than two years, Eskimo cancels it and the data is forfeited, after trying to warn you at least 30 days ahead.

Question 49

What Firsty referral code should I use?

Accepted Answer

Use referral code 69SR-OUUA, or start from the referral link on this page; if it isn't applied at checkout, enter it yourself.

Question 50

What does the Firsty referral give me?

Accepted Answer

€3 off your first paid plan of at least €4, per Firsty's terms, so a 1 GB Classic bundle costs €1.50. It can't be combined with other offers.

Question 51

Is the Firsty offer a cash reward?

Accepted Answer

No. It's a discount at checkout on a paid plan, not cash, and it doesn't apply to Firsty Free.

Question 52

What is the Red Bull MOBILE Data referral code?

Accepted Answer

Use RCALF78de4WRFZvy in the app's referral code field.

Question 53

What do I get for signing up?

Accepted Answer

The official app listings say the first 100MB of data is free. Red Bull MOBILE doesn't publish what the referral code adds, so check the app after entering it.

Question 54

Can I use it from the UK or Hong Kong?

Accepted Answer

Yes. The app is on the UK and Hong Kong App Stores and Google Play, and both the UK and Hong Kong are on the official destination price list.

Question 55

What is available through the USIMS invitation link on this page?

Accepted Answer

New users can receive 1GB of free data for the USA and Europe, as listed in USIMS's FAQ and app listing. USIMS's blog also states that invited customers receive 20% off their first purchase. The additional US$3 credit mentioned in the invitation message has not been officially confirmed and should not be treated as an available balance.

Question 56

Can Hong Kong residents use USIMS in the UK or Hong Kong?

Accepted Answer

Yes. USIMS is available in the UK and Hong Kong app stores, and both destinations are served. Hong Kong has paid plans. The free 1GB covers the USA and Europe, but USIMS has not clarified whether the UK is included; check the destination list in the app. For other destinations, compare paid plans and the separate low-speed Free Essentials service, including its supported apps and conditions.

Question 57

Does USIMS provide a phone number?

Accepted Answer

No. USIMS is a data eSIM and does not provide a regular phone number for voice calls or SMS. Retain your existing SIM if you need calls or text messages.

Question 58

What does the Wispr Flow referral give me?

Accepted Answer

Wispr Flow says most referred users receive a 30-day Pro trial at sign-up, double its standard 14-day trial.

Question 59

Do I need to dictate a set number of words to get my free month?

Accepted Answer

No. The invited user's 30-day trial is granted at sign-up, with no word count to reach first.

Question 60

When is the Pro trial applied?

Accepted Answer

The 30-day Pro trial is applied at sign-up.

Question 61

What happens after the free month?

Accepted Answer

You can subscribe to Pro at the current price or continue on the Free plan: 2,000 words a week on Mac/Windows, 550 on iPhone and 1,000 on Android. Check Plans and Billing before the trial ends.

Mobile, Broadband & Travel eSIM Referral Offers

Guides & playbooks

Japan from Hong Kong: choosing payments, eSIMs and airport arrangements

Travel eSIM and Travel App Referral Codes: How to Use Airalo, Saily, Roamless and Trip.com New-User Offers

Saily

Airalo

HKBN

Google Fi

JetFi Mobile

GigSky

Global YO

Rebtel

Roamless

Kolet

Yolla

Anytime Mailbox

CHARGESPOT

Eskimo

Firsty

Red Bull MOBILE Data

USIMS

Wispr Flow