Zero service from ABSA Home Loans

On 25 Feb 2020 I paid my home loan in full and I notified ABSA home loans about it same day. They acknowledge it and on the end of Feb another amount of over 5g appeared on my account (after it showed nil). I queried it and got another case number. Then I went to the local branch to stop the debit order just to learn they can't do it, I must talk to home loans. To date I asked Home Loans four times what is happening and got zero answer. Maybe, just maybe if I post this kind of service on the net for the world to see I can get someone to help me? I copied last request in for your perusal.

Lodewikus Di16de <***> Mar 18, 2020, 9:34 AM (2 days ago) to ABSA Hi This is now the fourth time since 25 Feb that I ask you to see what is going on with my bond. I had a nil balance then and end Feb there was an amount for just over R5000 on the bond again. I thought you took part of the premium again....where does that came from? What I actually want is you to sort that out and to cancel the flexi reserve and debit order on my home loan. Thanks Louis Pedro