Debit order that cannot be reversed

I went to absa bloedmall yesterday with an intention of reversing certain debit order. I was assisted by a lady called Eva. She told me that the system cannot reverse my debit order cos it was on recovery.so my question is companies n *****ers can dedut my money n put it on recovery and there is nothing I can do about it. I was not contacted to agree on putting that on recovery if there is such. Pls advice