Paid late bill but still not back on

[Matthew13]

Paid my bill yesterday but still no signal 

[Bambino]

@Matthew13 It can take 48 hours to clear a payment to O2. Longer as it's crossing over a weekend.

Speak to the Payment Management Team on 0800 902 0217. Borrow a phone or download Skype to call free if you have no other phone to use: 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

[Oxonian]

@Matthew13 

If you only paid yesterday (Friday), you will probably need to wait until Tuesday for normal service to be resumed. In the meantime, why don't you set up a direct debit so as to avoid problems in the future ?