Online payment into credit card not reflecting --- Terrible experience causing severe undue stress

I have an African Bank gold credit card. I made an online payment towards money owing on my credit card as I sometimes commonly do using the African bank website and online gateway on 09/11/2018. When logging in this morning (15/11/2018) I notice that the payment is still not reflecting. This is causing sever undue stress. For this type of thing to happen with a bank in modern times is totally unacceptable. I have double checked my FNB visa credit card transaction history as well as incontact messages and they all confirm that an amount of R4917.32 was paid to African Bank Limited Midrand on 09/11/2018 at 05:32am (I do have all the relevant proof). It is unbelievable that I have to double check when I do a payment via the African bank online portal to ensure the funds depict. African bank is promoting moving into the transactional banking space but their current systems are not foolproof and cant deal with simple payments into their credit card. Very very disappointed customer. Kindly escalate to the highest level to ensure this matter is urgently resolved as a matter of extreme urgency and please look into the system and ensure that this does not occur again. Problems of this nature will lead to customers abandoning usage of this credit card due to the severe undue stress caused.