********* business practices

I called and requested a discount on the loan and credit card and I was offered a 35% discount on both that were due to expire the 1 February 2019.The money was paid on the 7th by my employer IEMAS. The credit card account was closed and paid up letter was sent but not for loan. This is really ridiculous as the settlement letter for both loan and credit card expired the 1st February. When I called they refused to give me paid up letter for loan, when I ask how come, I got told discount is no longer 35% but 30% however the credit card still had 35%, all along discounts were being app**** the same to both loan and credit card. I now have to pay a shortfall of R673, after my employer paid over R12000 for both loan and credit card to be settled as per settlement letter and African Bank was willing to pay back that money to IEMAs because they don't want to write off the R673. I am not happy with the service and the way you guys conduct business, can someone fix this as I feel it is not fair business practice to me as as client.