Mobile top-up online
Our new simplified Web top-up service has launched!
Anyone can now securely and simply Top-Up any O2 mobile phone through the web, 24 hours a day, seven days a week here at o2.co.uk
Although you don't need to register for this service, you'll need to have your debit or credit card handy to buy the top-up.
Top up your mobile phone securely online.
O2 Top-Up Surprises
Remember with O2 Top-Up Surprises every time you top-up you win a surprise. Top up by £15 or more to receive bigger and better gold surprises plus more entries into the monthly grand prize draw.
