How do I contact o2 to receive money owed to me

[Arly2]

Hi, I've paid my final bill already. O2 sent a text message letting me know that I was overcharged. It states I'm to get in contact to retrieve my money. 

I've tried my o2 account and I have phoned a few different numbers to no avail. 

I'm guessing as I no longer have a o2 sim card in use and my direct debit has been cancelled already. 

Can you rectify this please? 

Thank you, Arlene 

[MI5 · Accepted solution]

@Arly2 

https://www.o2.co.uk/help/account-and-billing/refunds

Guide: How to find help & contact O2 

You can get in touch with Payment Management team on 0800 902 0217

Payment Management opening hours:

Monday to Friday – 8am to 8pm

Saturday – 8am to 6pm

Sunday – 9am to 6pm

Your DD will still be active unless you have cancelled it. It will just go dormant otherwise after a few months of no payments.