HDFC Bank — unnecessary charge on credit card

Address: Faridabad, Haryana, 121001

I received my new card one month ago, in first statement there are some unnecessary charged for rupees 1299. When i called to customer care they didn't explain about this. It s very bad experience of your credit card. So please help me about this or if you can not solve this issue then close my credit card account. I don't want this type of ridiculous service.