Apologies for reposting my AIBU thread but thought I might get more legal advice here.
In Feb 2017, I joined a new energy company. I sent them the meter readings and they sent it to the old company. I received and paid for my final bill in March 2017.
In March 2018, I received a bill for the quarter ending Dec 2017, which I challenged. They told me they would place it on hold and get back to me. There were several phone calls and then I didn't hear anything else.
Today, I have received a final warning for this amount. I have contacted them to let them know it was placed on hold for 30 days and I haven't heard anything since. I repeated my original complaint, that I paid my final bill in March 2017.
They have said that they have investigated fully, that bill was just an estimate, and if I don't pay within seven days, they will be sending enforcement.