ABSA debit orders which I have not authorized

I recvieved a message at 2am this morning that 2 debit orders were deducted from my FNB account. Details of these transactions are under the user name "Absa Bureau Services 1 user"

Debit orders:

1. Mag Zone Ym- ********** - R85 2. Safeguard Ym- ********** - R129

I have absolutely no idea what this is and I'm shocked that anybody can deduct money from my account without my authorization.

Please contact me: ********** 516