Unhappy client

I am not happy with regards to Capitec Bank how they treated me. I had a loan with Capitec and did a consolidation with Nedbank. They have settled the Loan on the 23/05/2018. As per my discussion with Nedbank my account was closed. On the 25/09/2019 i was derbited from my FNB Account and i was shocked as in what happened. As per Capitec, there was an amount outstanding with out my knowledge. I have reversed the money as i didn't know what was their reason to derbit my account. I deposited the money into my Capitec Account and they derbited my account without my authority, when i query they said i am owing them since last year and interest accumulated each month and now i am owing 2600. As per the satament after loan amount paid by Nedbank, the amount that was not cleared was 62 cents.

1. Capitec has no right to derbit my account without my authority. 2. My Loan contract with them was to derbit FNB account with them. 2. There was no communication with regards to what was outstanding as per my contract with them on the loan. 3. After they have derbited my account the following day(30/10/2019) they sent me an sms advising me how much is left to clear the loan. Its unneccesary their communication is sh*t as they never communicated with me before so its useless over 12 month after the loan was settled in 2018 and i get their sms now. 4. How come when the balance has been paid in full, there is still interest on the loan.