Poor service from Absa vehicle finance

I settled my vehicle account on 12/12/2023, whereafter I sent the POP to Absa, I received a response that I would get the Paid letter with further instructions. I am still waiting a month later!!! Can it take Absa this long to allocate a payment and send me a paid-up letter?

I am very displeased with this and it appears on my credit report that I am behind with payment on this vehicle, can Absa do their job, please!!!