HDFC Bank — insurance policy charged without my permission

Dear Sir/Mam,
I had a credit card of HDFC bank.in the month of march I found a tata aig insurance charges and i spoken to the custome care executive they told methat just pay the amount and that will reverse in next month after that i had stop the payment against my card due to same charges found in my next bill.

I had talekd with them lot of times and sent a fax regarding this besides this lot of complains sent through mail.

even I received a harrashment call from the recovery department regarding this i had told to their customer care head.

No solution found till today .
Today I also got a call from the department and he told me that I had signed on the paper how ever neither i had sent any written request regarding the insurance or they send me regarding the insurancee,
Unnecessarly i have found lot of charges and penalty against my card.

Reagrds
sadhan
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