RBL Bank — bad language and no sense of talking

Address:

New Delhi, Delhi

Megha from RBL Customer Care called me and used abusive language. I am a platinum choice supercard customer of RBL. My brother is unable to pay his card amount and due to which she is misbehaving with me. The bank didn't issue the card after taking approval from me. So, how anyone from bank can call me and talk rubbish. It can't be accepted at any way. The bank can only call up the main person or to the one who has taken the guarantee. They just can't call their sister, mother (in case of independent), father, or anybody as per their wish.