Citi Bank — got fraud call from creditsmadhaan on the name of citibank

Address:	Gurgaon, Haryana, 122001
Website:	creditsamadhan.com

Got fraud call from creditsmadhaan on the name of CITI bank.(Bhupinder, vivek, chirag) As they said they have good connection in your bank and they can settle the due amount of Citi credit card.They shown some documents also initally but at the end they cheated.Also they have changed my contact address, registered p[hone number and email ID with citibank.The settlement is due since last two years.I have not recieved any call from citi bank because they already changed my contact information.Because of this i am in deep stress.Kindly help me out.My email ID is [protected]@gmail.com
Mob-[protected]

Regards
Ravikant