UPDATE: Adding the final readings on my old meter to the readings at the end of September on my new smart meter, then comparing with the Symbio invoices, they have over-charged me by £468. No excuse for that when a smart meter sends them the readings directly! Not to mention the further £234 they were trying to collect on 1 October which I managed to stop.

ALSO: I just remembered I paid a two months advance deposit at the beginning. So that's another £228 they owe me. Please check your records to see if you paid an advance deposit too. I hope Eon will be refunding this, as well as the over-charge.


I got an email from Symbio yesterday saying they were going to take £234 by direct debit on 1 October. I checked my account and they took £277 on 14 September. So £511 in two weeks... I had a new smart meter installed five weeks ago and it says the bill over that period is £105. So they are over-charging massively. I checked the portal, but they have stopped issuing itemised bills! They just show a "monthly consumption" figure which is vastly inflated. I see they have gone bust today. I have cancelled my direct debit and recommend that all Symbio customers do the same.