HDFC Bank — One assist membership fee

Hello There,

I am HDFC bank credit card holder, today i got mail of my credit card e-statement, i got to know that they have deducted amount of RS.1899/- for One assist Membership fee without my knowledge, as i did not opt for any plan of one assist, please cancel my membership refund that money to my credit card back. card no ending with 9279.
Please refund my money asap.
Name:G Raghvendra.
HDFC Credit card no:[protected].
Mobile No:[protected].
email:[protected]@gmail.com