What would you do in this situation?
About a week ago I received my 'final' bill for electricity and gas, only, I never closed my accounts and I pay my bills on time. I thought this was odd but brushed it off as a possible error and went about my week with my fingers crossed that the power wouldn't go out. Fast-forward to yesterday when I received a letter in the mail from a different energy provider which was not addressed to me - I have not opened this letter.
I believe what's happened is one of my neighbors has signed up for this energy provider but listed my address instead of theirs. So they're paying for my electricity and gas as well as their own or are currently without electricity and gas. This would explain why my accounts are listed as 'closed' and the letter.
"I believe what happened is…". So, you are not sure, and how would you intend to find the person that you think might have done something.
Just contact your provider and get it sorted for yourself. Winter starts tomorrow and you don't want to be without electricity and gas for a day or so.