Trying to pay

[Vee1]

Hi I've been trying to pay my bill for days but my 02 keeps saying there's a problem. How can I pay please

[pgn]

Guide: How to Pay Your Bill (Airtime & Device Plans) has all the info in one place, @Vee1 - also when you are talking to O2, do ask them about setting up a new Direct Debit for your monthly bill, it makes things a lot smoother.  You can change payment details in your MyO2 via web, but use the guide above to get over your immediate difficulty. 

Looks like MyO2 via Web  https://accounts.o2.co.uk/signin  does let you set up a DD, @Vee1 

Good luck!