No protection against *****

I am in horrified at the response I got just now from an agent at nedbank customer service that I just ended the call. I phone at 11:30 asking if they can stop a payment from processing on my cheque card. He simply said he can't. I asked can we then stop future payments because I am thinking it's only R263 that I can live with losing he tells me no they can't. No empathy no desire to help. Yes we as customers need to be more vigilant but do you mean to tell me nedbank cannot protect me against future *****??? If not I am seriously taking all my banking away from them!!!