Pathetic service from ABSA just to close a credit card account

I've settled my credit card account on the 6th of December 2018 and two weeks later i'm still waiting for a closure letter. I've done everything of what was ask for to email proof of payment to about two email addresses which i did but yet calling in just now my account is still not closed and i cant get a closure letter. This experience and service have been absolutely pathetic as promises are being made and not kept at all.