Absa ripp of there clients

I have inform Absa Bank that I an retrenched 30/9/2019.

I have debitorder being deducted that I have no control over. I have contacted the creditors but they keep to deduct twice a month several debitorders. Absa bank ask me R150 for a debitorder that goes off and there us no money in my bank. Last month I was R1650 in arrear and this month R1785. So if I get money in frim the UIF that is so little Absa is taken off more than half of the money I receive. Can this be right? According to me this is a ripp off.