O2

Hi all, I was an o2 customer previously and I would like to switch back to o2. I have no account with o2 at the minute and I have failed the credit check as my billing address on my o2 account does not match my current billing address. Can I change m...

Hi, i accidently cancelled my direct debit before my last bill came out and now I'm really having trouble getting in touch to pay it. Any advice? I am no longer an O2 customer and any number I ring ends up hanging up on me as I don't have an account....