Indusind Bank — indusind bank credit card settlement

Address:	Kolkata, West Bengal, 700040
Website:	West Bengal

I have used credit card of indusind bank. But due to some financial crisis i am unable to pay the dues. I have mailed to bank for settlement but no response i got from the bank. One day one recovery agent has come at my room and telling me that he has come to take money for card. I have asked for i'd card visitors card but he didn't show me and telling me give me cash i will give you receipt.
I had denied to give cash then one of the lady called him her name is ankita and she is enlist management company. She was telling him don't come without payment and go with wherever he is going.
I told him i will not pay in cash.
And i was shocked bank has not taken any action towards them after the complaint. Again they have started harrasing me.
I want to settle my credit card amount as i am not able to pay the outstanding.
Kindly help