Finchoice is messy

At this point Finchoice does not deserve any star to be honest. I had a loan with them and I requested for a settlement now in July 2023. They sent settlement letter confirming settlement of R 36 184.94 with banking details. I paid R 36 184.94 (the exact amount) on 12 July 2023 and I have proof of payment. To my surprise on 25 July 2023 an amount of R 131.19 is debited from my bank account and when I check I see that Finchoice only allocated R36 053.75 of my payment towards the loan of which is not true and I do not know why they do that when I paid the full amount as per the settlement letter. I then called them on the 26 July 2023 to have them fix their mess because I want this loan closed. They acknowledged their mistake and said they would refund the R131.19 they debited from my account and allocate the settlement payment as it should have been allocated. They further stated that they would send notification to the credit bureau to confirm settlement and closure of loan account. I decided to check today if they have rectified my account or how far they were with that and guess what? I suddenly now have an outstanding balance on that loan of R 183. There's interest charges after settlement. Can someone from Finchoice Explain??????? I tried calling this morning but as usual their lines just disconect. Terrible Terrible service from them. I don't know if this is their way of trying to milk more money from me but this is totally unacceptable and I will take it further. I've been a very good client of theirs but this type of service from them is really appalling. They cannot force me to keep a loan that has been settled and is meant to be closed. FINCHOICE SORT OUT THIS MESS ASAP!!!