Unauthorised debit orders - ****med

This company has been deducting money from my bank account with an unathorised debit order since February 2016. when i informed tjem that i have never app**** to use this service they tell me i have to pay them over thousa d rand. For what? They cant give me any form with my signature on stating that it was me applyimg for this. They have to start realisi g that people like me are slways a target for *****s who hacks emails. This was mot the first time this has happened to me. I will not pay a cent for something i did not apply for.