Groupon India / Nearbuy — voucher for kodak picworks

Address:

Gautam Buddh Nagar, Uttar Pradesh

I have bought kodak picworks voucher for 3500 in march 2017 and haven't used it, it is expired in april 2017 and i am not able to use at least the amount i paid for the voucher.
I contacted the nearbuy customer support but of no use, they are telling that the voucher expired and it is non cancel deal.

My understanding is even if the voucher expired i should be able to utilize the amount paid for the voucher