RBL Bank — cancellation of my rbl credit card

Address:

New Delhi, Delhi, 110060

I, arun uniyal has lodged the complaints many times regarding cancellation of my credit card, but nothing has been done so far. I wrote them 3 times but they have not solve my problem yet.
Even their customer care number, there is no option to talk with any of the executive.
They msg me that they will call me back but they only blank calling me. Nobody speaks from the other end.
Kindly do the needful on urgent basis
Mob-[protected]