LittleApp — not able to redeem my coupon

Address:	Kolkata, West Bengal, 700016
Website:	www.littleapp.in

Hi,

I have purchased a drink coupon from little app in feb 2018 which was for 1250 and tried redeem the offer from aqua park hotel kolkata but i am not able to do it. They have denied the service twice stating that the drinks are not available and right now they have inform me that the offer is not valid anymore

It seems that it has been a big hassle for me and i am scared that i will losing out on money which is rs 1250.

Offer expiration date is 1st may 2018
My phone no on which app is registered - [protected]

I tried calling customer service and even writing a mail but it did not work. No one responded

Please look into it