Unauthorised debits

This month was the 1st time i experience the CLM ASSURa since i left absa for the same thing. The dibited 4 times in the spam of 3 days. Each time i could duspute the debit and block it but they still found a way. I left absa for this **** debit please do something about it. Im away i can only stop the debits for 6 months on the app but that is not enough cause i disputed the debit and blocked it on the 13th of september 2017 but the still debited on the 14th and 15th of september 2017. Help ASAP.