I have cancelled my O2 pay monthly contract and now have pay as you go but using same PAC number. I have now moved abroad.
I had an iPhone 4s contract of £36 per month with 5 months remaining. When I contacted O2 to inform them of my leaving I was quoted £183 + final month bill. I estimated this as maximum £223 final bill. Today I received an ebill for £402.
I have logged in to check my bill online but because I changed to pay as you go I can't view previous contract bill. Can anyone advise how I go about finding out about extra charges?