Of course. That bill will be scrutinised in its every single detail.

Yes I do, but just couldn't be bothered! They already reset all the readings so the bill should arrive tomorrow latest. SAR arrived yesterday via email and in my hard drive now

This is just the bill reversal of all bills since the contract started. Still awaiting amended bill for the energy used for the past 12 months but should not be more than a few hundred pounds.

Got this in my account (This is before the revised bill is issued so obviously going to reduce)

All the past bills have been reversed so it should be soon

Surprisingly, nothing seem to be missing. I got all the past records, screen notes, recordings, meter reader sheets, etc

UPDATE again: Got the SAR back today. Not much useful info apart from the complaint handler had send the request to the billing system yesterday. Based on npower's history on how long they take to produce a bill, it is going to take a while...

There are just so many areas that it could go wrong... Even when the billing team solves it and sends us an amended bill, npower is quite famous for screwing everything up and teams not talking to each other. I can foresee: the bill after could be wrong again keep reversing bills and not agreeing to a figure themselves Not crediting my account with the right amount etc etc!

Will keep an eye out. They are going to bill reversal everything since 2018 and re-bill the account. I hope the team applies the back billing code automatically instead of me disputing and reminding them about it!

Should be a relatively simple exercise of resetting the whole account, assign the rates to the correct tariff, and run a bill out of that. If they decided the tariff was wrong rather than switched round! (Could end up with a higher night rate in that case)

UPDATE: The complaint team from npower has action quickly this time. Spoke to a representative last Monday and did a load test on Tuesday. He has now flagged the account to the complex meter team for re-billing. Hopefully should be resolved soon.

probably misunderstood you somewhere sorry

Ah I figured it out. Ofgem say: Your supplier can’t ask to be paid for unbilled energy used more than 12 months ago, if you haven’t been accurately charged for this usage before. As the bills are more than 12 months old and are not accurately charged, we should not be liable for paying at all, and those bills should be written off completely. In my view I would say those bills are inaccurate and therefore doesn't legally exist. Even if they try to amend it and reduce the refund, I could say they are older than 12 months old and we are not liable.

Sure that makes sense now, I will escalate and demand the £1.7k + compensation. If not I will straight out issue a letter to claim. My charge-out rate isn't too far off if I add the time up! Where can I find reference to that they have to pay out the FULL AMOUNT for bills older than 12 months? All the guidance are aimed at customers owning money rather than the other way round.

If NPower do actknowledge their error but is only willing to refund the difference of the whole contract duration, without any further interest (and attempting to claim the pre-May2019 part), what should I do in that scenario? Would it be Using their complaints team then to Ombudsmen Straight up using a letter of claim and just demanding the £1744.86 (Probably going to make it £2000 for the effort and distress)