HDFC Bank — cancellation of one assist membership

I am a hdfc bank credit card holder for the past couple of years. The bank has auto debited rs. 1899/- from my credit card number ending with 8197 without my concern on date:18/01/2020. Amount was debited without informing me. I am not interested about this service and don't want this membership.

Please cancel the membership and refund this debited amount of rs.1899 as soon as possible.

Oneassist membership id : 3619491
Name :- vineeth v
Mobile no. :- [protected]
Credit card number ending :- 8197