HDFC Bank — No Objection Certificate for Credit Card

I am writing to this because I want NOC of my credit card from HDFC Bank, last month i permanently close
my credit card even the customer care people also confirmed that your HDFC regalia credit card permanently close
and also they provide me request No: [protected] but they not provide me any deactivation proof through mail or hard-copy since last month, even i sent handwritten letter to
Chennai office but they also not given any response from my application reg NOC of my credit card.
I want to know the status of my credit card if they are closed or not and also i want confirmation from HDFC bank
in future they not send any bill,
Just know the status of my credit Card from HDFC Bank,
Card No: [protected]
Name : Shridhar Naresh Dodewar
Mob.No : [protected]
Email-id : [protected]@gmail.com