Happened again in May. Told you couldn't do anything now as it's already been reported.
And yes, today it's happened again. Over £250 credited to my account because Eon meter readings are less than mine. Fed up of sending photos of my meter. fed up hearing how it's been sorted when it hasn't been. At the moment I can just put in a reading to put it right again until next month. BUT in August we move from fixed rate to variable rate, so I won't be able to do this. (I'll be charged at new rate for previous electricity).
This has been going on since November 2021. It should really have been sorted by now.
I have not telephoned yet. Perhaps someone there could advise?