Total Incompetence

I have a motorcycle financed with Standard Bank, a month ago the bike was written off and my insurance paid the settlement to Standard Bank shortly after. A week after the settlement was paid I noticed that the account was still open and not settled. I emailed Standard Bank to find out the reason and got a response 2 days later asking for the Proof of Payment, to which I immeadiately attached and sent back. A couple days go by before I get a response, then get asked whats the account number, so I sent through the account number. Days go by again, so I decide to check the account on my Standard Bank banking app to see that they took the settlement payment and minused it off the total amount leaving the interest on my account. I quickly emailed them attaching the settlement letter and the Pop again, to get another email asking for my id number. This has been almost a month now and because they can't seem to do their jobs correctly, I am about to get debted again for a bike that was settled almost a month ago. This has been the most fustrating experience of my life.