HDFC Bank — Credit card

An amount of Rs, 1299/- is debited to my HDFC credit card no. [protected]without my authorisation for the debit. I do not know on what basis you have deducted and offering me this one assist for my cards. You are required to refund me that back immediately. I have already lodged a complaint with one assist query number is 2027210. I need the credit back immediately. I never knew that hdfc credit card allows anybody and every body to debit the customer's credit card without written authorisation. IF this is the fate of my credit card, I request you to cancel my credit card immediately