I’m with Eon and was lucky to get a 2 year fixed rate just a few weeks before the prices shot up just over 2 years ago. That 2 year fixed rate has just ended and I owe them £274 (the curse of having a hot tub!)
I’ve had the same email as you
@rooch 3 saying I can make a one off payment of £620 and then my direct debit goes up by about £100 to £307 or pay nothing and my DD increases by about £150 a month to £359 per month!
The hot tub will be getting it’s winter shut down next week so our energy use over the next 6 months will be less than last year but the increase is scary having just come out of a fixed rate