[Resolved]  Standard Chartered Manhattan Credit Card — Cancellation of instcard

My standard chartered Manhattan Credit Card account number [protected]. Bank sold me some add on package (free coupons, discount card, insurance) on my credit card for which I had to pay Rs. 4000. Bank did a rigorous follow up during my wedding time to recover their Rs. 800 outstanding - which pissed me off. So I decided to close not to use their package and requested bank to close my account. But the bank did not close it in stead continued charging me with interest, they said i have to pay for the outstanding on the package. But I have not used the package then I can not pay for it.
I want to close my credit card account now due to all this but the bank says I have to pay for their package - this is utter unethical business, first bank sells you something on call then even if you dont use their services they keep charging you for that. Now if I continue non-payments cBill will remark in it's report my credibility being less without taking into consideration the facts.
Please help me closing this account.