My O2 bill fully paid but I still have no system. I can not even call the O2 customer service 🤬

[Esztus]

My O2 bill full paid but I still no have system.

[Bambino]

@Esztus This is not O2. This is a customer community.

It can take 48 hours for payments to clear O2's account.

Speak to the Payment Management Team on 0800 902 0217. Use Skype to call free Guide: A Guide to Skype 

The opening times are:

Monday to Friday – 8am to 8pm

Saturday – 8am to 6pm
Sunday – 9am to 6pm

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

When you do speak to them, arrange a Direct Debit which you're supposed to be on anyway and will avoid problems like this in the future.