If you have forgotten your mobile access PIN and enter it incorrectly three times, you will be asked to enter the phone's PUK code.
The PUK code is an 8 digit number that you were given when you first purchased your SIM card. The PUK code is printed on the SIM packaging. If you have lost this information, you can look it up in the "My Account" section on our website.
Follow this link and log in/register and see what else you can do without the need for a phonecall or visit to the store.
If you are still not able to find your PUK code you can always call us on 0808 10 15 247 and we can look it up on our system for you.