The instructions below show you how to redeem your voucher and get another 30 days

If you purchased a voucher to call international numbers then these are NOT the instructions for you to use. Go back to your email and click the link again.


It's really important that you follow the instructions. Please don't just go ahead and start following them but then not following them to the end, because if you don't redeem the voucher properly as shown below you won't get a refund nor will you get a replacement voucher. You'll have to buy a brand new voucher.


We again repeat: if you do not follow these instructions exactly you won't get a refund or a new voucher.


Step 1 

Go to the Three UK top up website by clicking here.


Step 2

Enter your UK SIM Card phone number in this format 07XXXXXXXXX. Do not enter as 447 or +447.


Step 3

At the next screen:



Step 4

At the next screen:



Step 5

IMPORTANT! At the next screen:



Step 6

IMPORTANT! At the next screen:




Then scroll to the bottom:




Step 7

At the next screen you should see this confirmation:




Occasionally the Three UK top up server malfunctions and you are unable to complete step 6. If this happens, you will need to call Three UK Technical Support and have them manually add the "Add-on". If you're in the UK call 333 from your phone, if you're in Europe call +447782 333 333 from your phone. If you can't call from your phone, then if you're in the UK call 07782 333 333 from another phone, or if you're in Europe call +447782 333 333 (standard international direct dial rates apply).