If you have closed your account with o2 then your access to your My o2 will have been stopped as well @Saha .
If you paid by direct debit, then assuming you have not stopped it with your bank o2 will pay your refund back.
If you have then you need to get in touch with o2 customer services.
Call 0344 809 0202, or message on social media:
Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)
Other ways and numbers are in the guide below:
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 Do not publish personal details (email, phone number, bank account).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
