HDFC Bank — cancellation of one assist membership

I want to cancel my one assist membership as i am no more interested in continuing with the service. Kindly deactivate my membership mmediately and respond to my complaint. I actually requested for the cancellation a year before but did not get any resolution on the same and the customer care person also did not respond properly. I don't want this service any more as am not using right from the beginning. Kindly cancel within 2 days and respond back.
Name: pavithra h
Relationship number: 1358341
Credit card ending number:2534