Refund

[Rachelva97]

I accidentally paid my bill twice and want a refund, how do i ask? I’ve tried everything and cant get a response?

[Bambino]

@Rachelva97 Customer service numbers are here: Guide: Coronavirus Community Help and Support 

Also below is alternative advice from an O2 Guru on how to get through.
Call 202 from your mobile.
When it comes to the reason you are calling, stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.

Or you could just leave the extra payment and it will go towards a credit for next month's bill.

[MI5]

@Rachelva97 

Overpayments will stay on your account as a credit.

Credits will be taken to pay next months bill and by the time O2 refund you, your next bill will be due anyway.