Rude service

I called in just to check my balance,i could tell the Lady did not know the system she chowed my airtime while putting me on mute and chatting to her collegues and after 5 minutes that when she tried to do a security check .at the beginning of the call i told her that i was ****** and i dont have a card then she wants me to tell her my card ,how do i know a mere card number by head then she hung up one . I demand an apology from her and or else i am moving my investment to Discovery since standard bank disrepects us the same people who feed them. Nonsense service