This is a customer community @Fl2 so we can't access your account.
Does your account show the bolt on has been applied, and how much is left?
It might be your phone has swallowed it up and the data has been used.
Try rebooting your phone as well to reconnect to the network.
If none of those work, get in touch with customer services.
Guide: How to find help & contact O2
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
