Call centre agent very rude and full of attitude

My mother called into Vodacom to pay her account which is in arrears and the consultant or call centre agent was extremeley rude, implying she is not the account holder, kept making her repeat her email address and ID number many times, she had attitude and condecending tone...only because my mother wanted to make a payment arrangement on her account, why would anyone *****ently want to make a payment into someone else's account. The girl sounded not ineterested in anything she had to say. very rude yet they say they need jobs