Absa card authorizations not very helpful.

I informed the card division about unauthorized deduction from my credit card. they issued a case number but further nothing. after a few weeks they came back and inform me that it was a contract that i signed. I was advised to contact the company which i did . I also cc them in on the correspondence. up to now nothing happened. Looks like i will have to take drastic measures to stop this monthly deductions and Absa just don't want to help.