RBL Bank — fraudulently giving credit cards

This bank is perpetuating absolute fraud by calling up senior citizens and offering them free cards

In my case my mother was called up by these people and even when she said that she didn't need a card they sent a card home. They created a customer profile with a dummy email id. When i contacted them through my id to cancel the card they said it is not possible because it is not the registered email id. After some days they messaged my mother to 'update' her email id (Unrelated to my complaint)

They have the audacity to charge for a card that was
A) supposed to be free
B) not asked for by my mother; and
C) has not been used to purchase anything

I have my doubts about the long and short term viability of a company like this which has to resort to such cheap tricks to earn revenues. I also am shocked that bajaj finserv would collaborate with such unethical companies.