NEDBANK - I AM FED UP!!

My husband went of debt consolidation – arranged new monthly payment with NEDBANK. First payment was allocated (payment made 6 OCTOBER 2020). 4x payments after that they didn’t receive with same details, we used for first payment. We were notified during February 2021 we didn’t make payments - also informed us we are using the wrong reference and were giving correct info. We corrected bank info and payments since then were picked up by the system. As of from 25 February 2021 I have been sending emails with the 4 payments we made during the time they "didn’t receive" payments, even after my husband took off work to go to the bank and got a direct email address to try and solve this problem. Seeing according to us we are almost done paying the loan we once again took time off and went to the bank on a Saturday (5 February 2022) that isn’t helpful either because only a few people work on a Saturday, they finally managed to allocate 3 of the 4 payments. We also need to phone almost twice a week to ask what is going on, any news and every time we are supposed to wait 3 working days before phoning again. During this time my husband was phoned twice to be informed he stills owes and both times he was given a different amount outstanding. The more he tells them we are busy waiting for them to sort out the payments the more they hammer on the arears!! I also phoned one day and ask to please send me a statement from 6 October 2020 up until now – I got 3 different statements showing only the first payment allocated!! I am getting fed up now!!!! We want to finish this and we aren’t getting any feedback with correct info.