HDFC Bank — charging of credit card annual membership of deregistered card.

Address:

Ward No 2 Shaktifarm, Sitarganj, Udham Singh Nagar, Uttarakhand

My customer ID is[protected]
I have deregistered my credit card after 30 days of credit card usage and paying the dues of it. Past 3 months, there was no credit card belonging to my account.
You have charged me Rs 500 as annual membership instead of having any credit card belonging to my account.
This is very irritating and fraud.
Kindly refund the amount otherwise I would carry this complaint to consumer forum.