Constant spam from FNB

They keep phoning me to sell me stuff. I never agreed to receive marketing calls.

Most recently they called to sell me legal cover because I have a business account with them.

I've already closed my personal accounts with FNB, because of how useless their private bankers are. I guess I'm going to close my business accounts now too, so that I have nothing left on FNB, so I can block their numbers.