The same thing as happened to many others here, I was switched from Swalec to Ovo and the next thing I know they automatically increase my direct debit from £90 to £335 per month because they ‘estimate’ I am £1,600 in debt. They won’t accept my true meter readings as they are lower than their estimates! As others have noted their customer service is essentially people answering phones completely divorced from the rest of the organisation - they have no information and you can’t be put through to a manager or another department. I have included an email from their customer service department to illustrate. I have been told they would have to raise an investigation into my meter readings but the lady told me she couldn’t tell me how long it would take to recalculate my bill ‘or she would get into trouble’ leaving them taking £335 out of my bank account for the foreseeable future. This feels illegal - I am in touch with citizens advice as their billing would make me homeless