Absa not notifying before deducting money.

Absa decided to deduct a R1000 from my account for so called debt that i paid off over 8 months ago and it is an absolute hastle to get hold of the right department to contact, their customer care line gave me a number to phone that does not exist. Highly disappointed in ABSA been banking with them for 11 years and now im having problems. Will definately switch banks asap!!!!