Vodacom contract cancelation

My Vodacom 5GB data contract account expired 31 March 2020 and it fell on a month to month basis after that, I continued with the payment until I sent a request for cancellation on 31 August 2020. The last debit was on 01 October 2020 and for some reason the amount totaling R1.68 was outstanding and on the last statement they put a note saying any outstanding amounts will be debited on 02 November 2020 which never happened.

I've never missed a single payment on this account and now Vodacom has ruined my credit score with just R1.68, when I contacted them on Twitter I was tasked to make a payment of R5.00 which I did on 10 December 2020 and I still haven't received a settlement confirmation to this day.