HDFC Credit Card
False billing

Dear sir,

i was using HDFC credit card last year and i made health insurance through that card, ofter one month i cancel that insurance. and also i made request to even cancel my credit card also, since then i did not used that card for anything, but stiil i am getting false billing and notice from bank. i requesting you that kindly cancel my credit card and stop sending notice and false bill. my credit card number as follows

4346771100417568