Contract Cancellation and Credit Report ***** by Vodacom

I had cancelled my contract with Vodacom at the Vodacom Fourways Store and paid the early cancellation fees in December 2022 and was advised that ti would still would be billed in December as the cancellation quotation doesn't include the months instalment since the grants had been allocated - to this I had no issue. However to my surprise I was billed in January 2023 for R1164.45 for the same cancelled contract. To add insult to injury - I looked at my credit report and saw the Vodacom have listed me for "missed payment" - how was a payment missed when the money was firstly erroneously debited from my account and then still get listed for non-payment after the debit.