If you have a SIM from O2 this is how you can use top-up vouchers.
To top up your phone you will need a voucher. When you receive a message with the voucher, write down the 16 digit voucher number: Example: 5189 7462 7450 4157
Make a telephone call:
Use the phone to call the number 4444
- At the voice, wait until it says:
- ”Press 1 to top up”
- Press 1
- wait till the message says:
- “Press 2 to top up with a voucher”
- Press 2
Type in the 16 digit voucher number:
You will hear a message saying the voucher has been added.
End the call.
You will receive a message very soon saying your top up has loaded.
Each month you will receive a message with a new voucher and you must repeat this process