HDFC Bank — balance transfer from old food card to new food card

Address:	Rangareddy, Andhra Pradesh, 501510
Website:	HDFC Prepaid Card

My old food card got damaged and i sent an email to "foodcardsupport. [protected]@hdfcbank.com" and they sent a procedure for requesting new card.
My got new card got dispatched to my address, when i have asked for activation of new card and sent an email to above mentioned address, they haven't responded.
I have called to customercare, but they stated we don't have much information need to contact the same email address.

Some how, i got information after searching and activated new card. But the balance is not transferred from my old card.

I have sent an email to "foodcardsupport. [protected]@hdfcbank.com" for the same on oct-17, haven't received any response. I have sent multiple followup email. But no response.
Later i call customer care again and asked the executive to provide information or informed to transfer call to supervisor, then he provided information that my old card in still active and balance transfer can be done only after blocking old card.

I informed him to go head, but even though it didn't help. When called back to customer care again, scenario has explained about the no response for the above mentioned email.
They asked to send email to "prepaidcards, [protected]@hdfcbank.com", i have received the acknowledge email and as per tat i have received any response and escalated to 1st level.

I am not sure whether hdfc will be providing the solution for this on time. Because my card been blocked from oct-1st. I am trying to get the solution. Byt customer care is not aware of the process & support email box is not providing the response on time.

Need a quick resolution, as i have waited ample of time to receive a response from the hdfc bank food plus cards.