Netstar *****ing my money

Another example of big business *****ing from people, I recieved a notification that R1200 debit order has come off my acount from Netstar where I do not even have a contract or tracking device from Netstar I reversed the debid order but at a cost of R45. How can they just submit a debit order with no authority from me. I had a Netstar tracking but was canceled in December 2022.