When I was first with Vodafone, they got every bill wrong for the first 18 months. Extra text packages, insurance I hadn’t asked for, 3g packages…you name it, they stuck it on.
Then it all went ok until they let a fraudster who rang them up change my address, tariff & upgrade me to a new Blackberry that was sent to his house.
Only found out when they called to see how my new tariff was suiting me. Then they accused me of fraud, wouldn’t change my tariff back even when it became clear that it wasn’t anything to do with me. They reckon that he rang up & just said ‘i’ve forgotten my PIN’ and they gave him full access to my account. Annoying thing was they put an extra PIN on my account & a security question that I was supposed to be asked every time I called. I wasn’t asked the extra security questions once.
I switched to T-Mobile.