Unauthorised debt order in my account

I got paid on the 27th on the same day got two debit order one R2450 and R650. BOTH UNKNOWN to Me. When to the bank branch at Clearwater Mall l was told l don't have ID so The consultant said they couldn't help me that day. I went back the next day. They told me that the debt orders were authorized. My question is by who because it's not me. I. Know none of them. They said they will send me an incident number but nothing has been sent since Wednesday. This money is almost all my salary as l work in the retail industry. I have nothing l need this money back for me and my kids. You services is bull****