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northernmonkey
When it comes to Credit build up you would want at least 1 and a half months to 2 months worth of Credit built up on your account as you head into the Winter months.
Sadly, even with the Governments Energy Bills Support Scheme taken in to account, energy bill's still increased and many people are finding their Direct Debits have increased.
From October the 1st, energy prices rose by 27%.
That's 27% higher than what we were paying during the Spring and Summer months but significantly lower than what had previously been predicted.
So your Direct Debits should reflect this 27% increase.
By what you are saying your Direct Debits have risen from £200 to £270pm and by my calculations that would mean they have set your payment about £16 per month more than is necessary (@ 27% increase your DD should be around £254 pm) however with their calculations you will be paying an extra £192 more than is necessary over the next 12 months (if energy prices remain as they are now).
You should be able to lower your Direct Debits on your online account by at least 10%. If I was you, I would lower my DD to £254 and keep a close eye on it over the coming months and increase or decrease (if you can) as and when needed or pay off any extra as 'one offs'. This way, you won't need to contact E.on Next and waste time and energy trying to get in touch with them. Also, if by January you're still adding to your credit rather than seeing it decrease ask for a small credit refund. Just make sure there is enough in your account to cover the extra cost up until April.
Hope that makes sense 'cause I'm trying to write this while being nagged by kids and dogs and my brain is totally fried!
Good Luck