Paid up letter

I had an account with Edgars and never used it but could not close it because I had a hollard funeral plan with them, when they no longer had an agreement with Hollard we were not notified as clients and I inquired charges for administration, I went to Trade route Edgars and was advised to pay a certain amount to close it off and however they continued with their administration fees, I was livid and decided to leave them and don't pay attention to their invoice, they later referred my account to some mickey mouse legal company MBD where I was advised to pay a certain amount to settle the account and I managed to do that and that was in November 2021 till date I have not received a paid up letter neither was I removed from ITC, when you call MBD they will tell you different stories and also hang up while you stil talking to them, please can I be assisted with a paid up letter as currently I'm not happy with your service as well as the legal team you hired as I think they are **********. My contact is ***