Pathetic service from Absa bank - Credit card division.

My mom had a credit card with Absa and on then decided to close the account paying the outstanding amount of R76 421.77 via Capitec transfer on the 17/08/2018. Instead of Absa giving her a settlement discount they are harassing her both in writing and telephonically. She approached her nearest branch only to find there's still R74 000 outstanding. Please rectify this as this is emotionally draining her. We've got the proof of payment that we gave the people at Absa in Lusikisiki but still she gets calls and smses. The time of the transfer as it appears on t his proof of payment is, 17/08/2018 01:49:52 PM electronically signed at Kokstad.

Due to security reasons, we cannot give out her account details. Kindly assist.