Bank for ********** entities and ********

Why did I not received a message to confirm or to give authorization for a company debiting my account? For the past several months R435 has been coming off my account for an insurance premium of sorts debited by a company called Fulcrum Group. I go into my bank and this is indeed a ********** company and a client of Nedbank, with several people having had the same thing done to them. I gave nobody authorization to do this? I call Nedbank and then they give me a non-existent number for the company that is their own client? Will never use Nedbank knowing that they work with ********** entities.