I am sick to death of Absa!

For months now I have advised Absa that I can afford R500 a month for my credit card, its not the full amount, but its better than not paying at all. I have spoken to them until Im blue in the face about harassing me daily with non stop phone calls. I have begged for them to stop sending me advertising and my savings account statements for an account I closed last year! I was with Absa for almost 20 years and due to this as well as their lack of service and bad attitude I left Absa, and have been SO happy with my new bank. If I could sell my kidney and pay off Absa so that I never hear from them again, I would happily do it in a heart beat! PLEASE STOP WITH THE 8 PHONE CALLS A DAY! No matter how many smses or phone calls I get, I STILL can only afford R500 a month, which is paid over EVERY MONTH on the 26th WITHOUT FAIL!