Eon gave me a set figure for my monthly direct debit. All was well. A year later when they reviewed my account they informed me I was in debt to them - three times my direct debit amount. Angry, I paid my debt and left them. They contacted me during the switch and promised this would not happen again if I stayed with them. Foolishly I agreed and a new direct debit figure was arranged. Now a year later, exactly the same has happened again but this time my debt is nearly seven times my direct debit amount!
I can't switch to another provider until this debt is paid. Eon are most definitely experts in "debt blocking" customers.