Clientele ****s people and deducts money without permission

I am so hurt with what clientele did to me. Their representative **** to me and asked me to put my name surname and ID to see if I qualify for a cover and after that I'll get a voucher. He clientele called me and said I joined a cover, I told them I was ******* by their representative and I'm not aware of joining anything. I told them to cancel it and they said they will. To my surprise, they did not instead I saw a debit order from them and they had deducted an amount of R340 from my nsfas stipend. What these people do is *****ulent,they want people to join clientele forcefully and they **** people to join this thing. Imagine paying for something you don't know? I'm just a poor student, I don't afford any cover. I just want my back, I tried to dispute and stop that debit order but it doesn't allow me to do that. Clientele is such a ****. Give me my money and cancel that cover I know nothing about! For God sake, I did not even authorize any debit order from clientele, I want my money plsss