Top-Up abroad
The simplest way to top up abroad is with your debit or credit card
Whenever you go abroad it's a good idea to Top-Up your mobile phone before you leave.But if you need to Top-Up from overseas you have several easy ways to do it. You could take an O2 voucher with you, or use your Credit/Debit Card. Both options allow you to Top-Up via the O2 Top-Up line from overseas, free of charge if calling from your mobile phone.
Credit or Debit card top-up over the phone
Use your Credit/Debit Card. Just call the O2 Top-Up line free by direct dialing 4444 from your mobile phone.
more info on credit/debit card top-up
If you want to Top-Up from a country that doesn't allow Direct Dial, please enter *111*# then press the call button.
Your mobile phone will go on standby for a few seconds before it rings. Answer the call and simply follow the voice prompts to access the Top-Up line by dialling 4444# and then proceed through the Top-Up service as you would in the UK.
O2 Vouchers
Take O2 Top-Up vouchers with you. Just call O2 Top-Up line free by dialling 4444 from your mobile phone.
Web top-up
Top-Up online, right here on O2's website.
