annoyed by ABSA

I have a card with ABSA which I've been paying since January this year. I had to figure out myself that there was no debit order set for my credit card and I've been doing manual payments. sometime in August I called ABSA to arrange a debit order starting this month. to my surprise when I check my messages this morning ABSA didn't debit. I just called in, waited on the line for about 40mins and I ran out of airtime, I asked to be called back the agent said she won't be able to as she's only taking incoming calls. This is going to affect my credit score, I just want to pay off this account and walk away from ABSA. If you haven't started a business with please do not consider doing so, ever.