HDFC Bank — Cancellation of One Assist Membership

My oneassist plan is auto activated. I am not interested in this plan and want my money back that is charged from my hdfc credit card.
My plan is enhanced wa privilege single plan and i have been charged for it.

Kindly refund it soon as it was charged without any consent.

Relationship no. : 9604607
Plan name: enhanced wa privilege single plan
Name : MURALI KRISHNAN