Frequently Asked Questions

Bills are generated monthly on your billing date. Direct debit payments are collected a few days after your bill is issued. You can view your billing date and history in the TISA app or customer portal.

Download the TISA Mobile app or log in to my.tisa.one to view real-time usage, download bills, and manage your account.

No. TISA is committed to transparent pricing. All plan costs are clearly shown including VAT. You only pay for what you use beyond your included allowances.

We include any remaining device payments or contract fees in the SMS with your PAC or STAC. You only pay for services already used plus any agreed device balance. See our Leaving TISA page for details.

Once the account closes we generate a final statement within 7 days. If you are owed money, we refund the card or bank account on file automatically.

Yes, TISA supports eSIM activation on compatible devices. Contact our support team to request an eSIM and receive your QR code for instant activation.

Absolutely. You can port your existing number to TISA by requesting a PAC code from your current provider. Visit our Keep Your Number page for details.

If we have your PAC before 4pm on a working day, the transfer normally completes the next business day. Requests after 4pm or on weekends complete within two working days.

There may be a short period where calls and texts pause while the number is reassigned. Have your TISA SIM ready — once inserted, service resumes on our network.

Simply text PAC to 65075 again from the same phone. Networks must reissue a fresh PAC free of charge, valid for another 30 days.

Call us immediately on 01908 737 500 to block your SIM. We'll arrange a replacement, typically delivered within 2 business days. See our Replacement SIM page for full details.

Yes. Call us before the scheduled transfer date and we will cancel the code, reactivate your number if needed, and review any improvements we can make.

Roaming is enabled by default on most TISA plans. Simply turn on data roaming in your phone settings when abroad. Contact us if you need to activate or check your roaming status.

Yes, we apply fair usage policies to protect you from bill shock. If you approach any limits, we'll notify you. You can also set spending caps through the TISA app.

No. Tisa Home works on any phone with any network. Simply download the app, register in under 2 minutes, and get £1 free credit to start calling internationally straight away.

Yes. When you verify your mobile number via SMS during signup, all your international calls will show your real UK mobile number as the Caller ID. Your contacts abroad see your real number, unlike most calling cards which show random numbers.

Visit our International Rates page to search rates for any country. You can also check rates within the Tisa Home app.

TISA SIM international calling works directly from your mobile keypad with no app or data needed. The Tisa Home app works on any phone with any SIM using WiFi or mobile data. Both offer the same low rates to 180+ destinations.

No. Every TISA SIM includes international calling — just dial the international number directly from your mobile keypad. No app, no setup, no extra steps. You can also use the Tisa Home app if you prefer calling over WiFi.

Call India from 2p/min, Nigeria from 5.5p/min, Bangladesh from 1.5p/min, Ghana from 17p/min, and Pakistan from 3p/min. All rates include VAT with per-minute billing and no connection fees. Check our International Rates page for all countries.