Use On Top Up to instantly buy credit for your Pay As You Go O2 UK mobile phones. Our system supports all major mobile networks including Lebara UK top ups, Now Mobile UK top ups and Tesco Mobile UK top ups. You can add multiple phones per account, even ones on different networks, allowing you to easily topup all your phones from one website.
With On Top Up, you can instantly add credit to your O2 UK mobile phone account. Not only that, but you can also set up scheduled auto top ups*, to ensure you never run out of credit in the future. You can also add multiple mobile phones, on different networks, to your account, to enable you to top up your whole family's phones whenever needed.
*Note: Auto top ups are only available on selected mobile networks.