I have a Gas debt with NPOWER we I have been paying off weekly via pre-payment meter for approx. 36 months. This has been working fine. They have in the last month suddenly reported my account to be in default with Experian which has destroyed my credit score. They say this will remain until I clear the debt completely. Their customer services said that this was a change in policy of how they report debt on pre-payment meters (had I been paying this off via DD then it would be an issue apparently - I am now trying to move to DD). I have a complaint in with them now, and I have contacted Experian and will be contacting the Ombudsmen if I don't get it resolved soon. Can they simply change their minds like this without notifying me?