NMART — refund of 11000/- after 48 months

Address: Rajkot, Gujarat, 360370

Website: www.nmartretails.co.in

Dear sir,
I was made n mart membership by paying 5500/- one time payment and was give shopping vouchers of 220/- x 48 months voucher. After 48 month nmart had promised rs.11000/- refund

After 1 year all the outlets of nmart had closed and we're not operating.

Can someone please guide what to do as there are 5000 members in just my city and more than 15 lac members in india.
I don't know why nobody is complaining.
Lack of government guidelines is the main reason like this company loot people.

Thanks
Jignesh