Switch To Business

Support > Mobile > Top up

Top up

How to top up your phone

  • Dial *#100# to check your balance


Simply visit the top up page to top up using a credit or debit card. Please remember to have your card details handy in order to complete your purchase. Minimum top up is £10.

By phone

Dial 177 from any Sure Phone, or 01481 701077 from any Channel Islands, Isle of Man, UK and French landline or mobile, and follow the instructions. Please remember to have your card details handy in order to complete your purchase. If you are dialling from a withheld number, you will need to dial 1470 01481 701077. Minimum top up is £10.

In stores across the island

Use the pink Payzone terminals at many supermarkets, stores and garages across the island to top up. You will receive a receipt with a 13 digit PIN number printed on it. Dial *#101*PIN# to top up your phone.  Minimum top up is £5.

See where you can top up on the dealers page.

How to check your balance

Free text response
Dial *#100#  (then press call button)
You will then receive a text message telling you your account balance. (available worldwide)

Problems topping up online or by phone

For your card protection we only allow a certain amount of attempts per day or per week when using the same details, and only up to a certain value limit. This helps to control fraudulent attempts to misuse the system, potentially with your payment details. We understand that at times this may be frustrating, but we are here to help you through it. If you do find yourself having a problem, give us a call and we’ll see how we can get you topped us as soon as possible.

Contact us by phone:

01481 700700



Postal address:

PO Box 3
St Peter Port

Contact us

If you want to find out more about Sure services, or if you have any other
questions, then please get in touch with us. We're always happy to help.

Contact details
Your Sure service
Your question