Hi beany1,

First of all it sounds like your Direct Debit has increased to cover your usage and pay off the balance of £789. This is the reason that the monthly payments are high.

But, if the billing is incorrect or you are being billed on the wrong tariff it is likely that this balance is also incorrect.

Do you have the meter readings from when you moved in to the property?

You really need to speak to E.ON again about the meter type that you have, you could even send in a photo to show your meter.

Until the meter type is confirmed, E.ON won't be able to correct any billing or tariff issues.

Hope this helps.

Helena