Jio — hotspot coupons unusable

When i bought jio hotspot there was 3 coupons provided, one to redeem in relinace digital rs. 500 + rs 500 = rs.1000, ajio for rs.500 on purchase of rs.1500 and paytm rs.800 on buying 2 flight ticket.
For ajio and paytm there were some condition on min purchase, but for reliance digital there was no condition mentioned.
On enquiry at reliance digital store multiple times, once they said it need to be used only for online purchase but there is no online purchase option available at website. Another couple of times when checked, no one had any idea how to redeem. Today in the reliance digital store at gopalan signature mall, they mentioned there is a minimum purchase of rs.10000 to be eligible for coupon redeemption. This looks like some gimmick the company is playing to attract customers to spend more than provide any benefit.