ADT's Pathetic Customer Care and Accounts Department

I am so disappointed in ADT, I have requested my service to be cancelled in 2023 and I was advised to give it a month notice which I did, Debits orders were cancelled on my side and any outstanding monies were paid via EFT from my side and proof of payments has been sent. To Date I have received several emails about outstanding fees but no proper reconciliation has been done on the account. The service is pathetic I have a trail of emails and consultants dates and times I have spoken to and over a year later this is not resolved.