Bad customer service and our money is not safe

I got a message from some company called amandlha4life saying they will debit my account on the 22 December and i went online to check it out coz I don't know the company and have never given them permission to debit my account. When I checked the internet I saw many people saying they are FNB clients and they got the same message. I called FNB and they said try can't stop the debit until it goes through but m saying to them I need to fix my score and I cnt have these senseless debits debuts on my account and i can't afford to reverse debuts at it affects my score. They said i must hold. Twice they made me hold for up to 10 minutes and then just dropped the call. I am using airtime to call them and they just drop the call and don't even bother calling me back. Sis. Makes me sick how some people can be so insensitive. It's money we are talking about here. And I am not prepared to interfere with my credit record because of some bridge in their system. They need to fix this. If our money is not safe at bank's then what.