Do not buy JioMart gift vouchers in Gyftr.

Bought JioMart Vouchers on Gyftr 10 days back, when i tried to order & Redeem, there was no option to redeem voucher, called up customer care was told there is some work going on in the site by development team so i won't be able to redeem the voucher. I tried again today after 10 days still same issue customer service has no idea when the issue will be solved.