Kotak Mahindra Bank — issued credit card without my approval and consent

Address:

Bangalore, Karnataka, 560043

I got a call from an executive explaining me benefits of the card to which i initially said no i do not want any cards. He further explained that this is free of cost and has multiple benefits to which i further said no and said send me in writing about this card benefits. And asked him to call back after couple of days so that i confirm after i read.

However today i receive a message from bluedart that a kotak bank credit card is on its way for delivery. This is not acceptable that a credit card is issued without customers consent.