LittleApp — the restaurant is closed since long and voucher unused

Address:

Jungle jamBoree, sector 29, gurgaon, 122001

I purchased 2 coupon of jungle jamboree gurgaon from little app worth rs. 1402. The restaurant is closed looking back still they are issuing coupon for that location and on complaining niether they are refunding the money nor any response from them.. My coupon expires today on 1st may. I need help.. It caused disappointment at first place that you go for lunch finding the place is closed. How can they issue vouchers for a place which has been closed long back. There are no contact number also where we can call and che k