HDFC Bank — chasing for reissue of card but no revert

Address: New Delhi, Delhi, 110024

Hdfc jet privilege card ending with 5060 was issued in the name of binita majumdar. The expiry month & year was oct 2017. Since aug 2017 i have been frantically trying to change my mob no. Visited the branch submitted the sign mismatch form with new request to issue the card or to know the status. But regret i can't. Now as expiry date over can't get thru customer care. Pls help