HDFC Bank — Unauthorized amount hold and no response

Address:	Gurgaon, Haryana, 122001
Website:	www.hdfcbank.com

I transferred an amount of Rs. 38000 in my hdfc bank account on 02/11/15
surprisingly an amount of Rs. 23750 was hold without any information
and when i tried to call and visited HDFC bank they are unable to give any information and says this is due to credit card. due to a theft i blocked my credit card and i have not received any credit card after that and for last one and half years i have not used hdfc credit card so how can they hold an amount just like that. i tried to call credit card department and they are unable to resolve my issue and gave me a number[protected]/02 and no one receiving call on this no.
Now i am helpless as my amount is hold and i have to survive for one month
I request a refund of my full amount and if HDFC bank needs some amount they can talk to me on this but this is not the way as no one is responding