Frustrating and disappointing

I have a credit card with standard bank, on the 22nd of December 2022 I made a payment to settle my account and made a finger error and added more numbers On my reference as soon as I realised I called in and was asked to send the proof of payment I sent it to different consultants and even spoke to the team leader as I speak now it’s the 3rd of February 2023 it is still not located and it is affecting my credit score as it states I have missed payment and they keep calling me to say they last received payment in November. I don’t understand why is it so difficult to allocate a payment which was done to the correct account number.