Payment not allocated for almost a month

Good day,

I have made a payment to Wesbank with the purpose of reducing my Car installment.

The payment was made on the 24th January 2018 up to date Wesbank cannot find the amount paid in their bank account. I have sent proof of payment 3 times now but still they say they cannot find it. The amount in question was sent from my Nedbank Money App to Wesbank.

My fear is that I keep getting statement showing the old debit order set to come out on the 28th of February and I would like to have this resolved as the service I got so far is not making me feel happy.

Regards Luthando