[Resolved]  HDFC Bank — In life time free card i am charged amount approx 6000 Rs

no resolution is provided till now Krishna Gopal Vishwakarma, CC No.- 5459648900865123, i recieved a call from hdfc executive (Mr. Sachin, mob num-9811332528) offering a life time free CC to DMRC employees. So I decided to have one also as it is free of cost as per the executive & also many of DMRC employee have it. so i gave my documents to him. After receiving my card i again received a call from a executive for protection of my card against fraud. He told me that he has a offer, no money is required for this, only some amount(1800/-) will be freezed in my CC & i able to use full limit of my CC from next year. I have to say 'YES' to a calling party to which hdfc will coordinate. after it i have called many times for sending of my CC pin but still not received it. From past 2-3 month i am having a call from hdfc, insisting me to pay an amount of 7000/- for the shopping i have done. But i still not received my CC PIN to shop anything, it is useless to me till now. but They are calling me & warning me regularly to pay 7000/- which i did not shopped. please help me