O2

Hi, I pay monthly. My recent bill is supposed to be just over £22 however my balance reads as £0?Have I overpaid enough to pay this month or do I still owe the over £22 and it's an error? Thanks

Hi, I have a sim only contract, but I have 2 children and a partner also wanting one, for which I want to pay for them, but as my details are already registered it just wants me to upgrade the one I have for myself..... How do I add 3 separate ones t...