Debit orders without my authorization???

Why have 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 the bank and this is indeed a ********** company and a client of Nedbank whom several people have had the same thing done to them. I gave nobody authorization to do this?

You as my bank have now made me feel unsafe in banking with you as I don't even receive an authorization otp or something asking me to give this authorization or if I am even aware of these ********** debiting me, that means that any assh*le can just set up a debit order and take money from me and that is it? I work hard for my money. This is on you to fix because I received no communication regarding this. Please have someone contact me on how and when I am getting my money back.