Capitec Bank - Frustrated at customer service!!!

I have 2 credit products with Capitec. A Capitec personal loan and an Access facility. According to my contract, my debit order is supposed to go off at the end of the month on both products. In December I got paid on 29 December and the debit order was not processed. I then received a SMS at about 23:30 on 31 December saying my accounts was in arrears. At that time because I had money in my capitec account, I quickly paid the 2 accounts via the Capitec app. I just received my credit report and it shows my accounts are 1 month in arrears. According to my contract, I clearly stated that I get paid the last day of the month, so I don’t think it’s fair that my credit profile is now in arrears because capitec did not process the debit orders on time. I called the collections dept to explain my situation. They advised that my credit report shows 1 month in arrears because the payment reflects as being made on 01 January, however again I reiterate, why must I be penalized because Capitec decided to process my debit orders on 28th Dec instead of end of the month as clearly stipulated on my contract, ie the last day of the month. The call centre agent in the collections dept then said she would transfer me to a dept that can rectify my credit report, however I have been transferred from pillar to post with nobody being able to assist me which is very frustrating.

I would like my ITC report updated as this is negatively impacting my credit profile at all credit bureaus.