HDFC Bank — unauthorized transaction for one assist mfee

My name is md moniruzzaman, i have been charged rs.1899 on my hdfc credit card on 30/07/2020 without my permission. I want to cancel the unauthorized plan against my card, and also credit my money in my credit card which you have deducted in my credit card account without my permission.
So request you to please cancel this activation against my credit card, and also refund my money.

Credit card : hdfc - ending with 4705
My registered contact no: [protected]
Amount charged : rs.1899