Poor service

1st complaints, Yesterday I was called by MBD stating that I have 3 accounts for capitec while I know I have 2 accounts 2nd complaint, I settled my capitec Credit card account 2022 I have been struggling to get my paid up letter, I have been asking them they always say they will send it until today trying to get my paid up letter, please assist what must I do. Because I know very well I dnt have 3 accounts for capitec, I have 2, and how can I get my paid up letter, this is not fair