FNB is *****

I have R97. 99 Reargentum debit order that I know nothing about debit my account every month. FNB charge R48 to reverse the debit order. They making money out of me. I can't even call this company as I don't know anything about them, when I search the internet... It is written that it a debit order **** company. I know FNB knows about this company but they not doing anything about it as they benefit reversal fees from these *****ulent debit orders