Unautherised debets !

I had a loan application a few months ago, they called me and did the application with all my personal details and was declined . A few months after that I only noticed 4 unfami**** debits going off my bank account. It was R45 LEGALEYE ,R45 MEDIA ASSIST , R45 RESCUE 247 and R90 UNITEDREW . This I had no clue what it is and where it comes from. I went to my bank and reversed it, but had to call them to try and stop it. I called three times already and they keep saying they will cancel it , that's when they explained to me where this comes from if my loan was approved that was to be added as the LOAN AGREEMENT says. How much money have I already lost only till I saw the deductions in my statement ! Is there anyway for me to stop this and get my money back ?