Absa not following through

I went in to Absa on Tuesday, 16 May, to close my credit card account. The person helping me contacted the credit card division, informed me how much I needed to pay into the card for the settlement amount and told me that the cancellation is being processed and that the credit card division would call me during the week to finalise. I received a call on Friday from the credit card division offering an upgrade on my credit card, I informed the person calling that I had been in to cancel the card and she simply said oh, and hung up on me. Now, the credit card's monthly fees have come off on a date that they've never come off before and the amount on the card is now less than the settlement amount I've already paid and THE CARD IS STILL ACTIVE