When I moved house in February 2016, I had requested EOn to take over the new house's electric prepayment meter (which was topup via key). However due to the error/confusion of the meter number they could not move me over immediately. So I got a top-up key and started to top up the prepayment meter using that.
EOn recently changed my prepayment meter to credit meter (July 2016). During the changeover I had about £5+ credit on it.
They have now billed me from April 2016 to July 2016 (i.e. when I was using the key to top-up meter). I thought with prepayment I was actually paying first before using the power! How can they justify charging me after for a prepayment meter arrangement!
Is it right that they have charged me inspite of the fact that my prepayment meter was always in credit?