Cancelled my will with Absa but absa is refusing to stop debiting my account

I cancelled my will with absa after receiving bad service. When absa contacted me I made it clear to them that I am cancelling my will with them and when I die they are not the executor of my estate. This was on the 2nd August 2001. To this day absa is still debiting me for the safe keeping of my will even though they rep**** acknowledging my complain. Absa stop debiting my account. Absa I clearly cancelled my will with you. Why are you still debiting my account ? The person who acknowledged my request was Daphne le grange