Call agents and rudeness

I just contacted Vodacom in order to find out why my account has been debited and not explained to me that my airtime will fall away and this rude agent just hung up on me! I have no words for this Utter disrespect. If you don’t have answers, please connect me to someone who does. I’m only a client, wanting answers. The rudeness I still can’t comprehend. Pity I don’t remember her name.