Hello,
I had recharged couple of jio numbers on my jio app and had paid least importance to jiomart 20% cashback as jiomart is unserviceable in my area.
But, surprisingly, it can be redeemed on "Netmeds" app too. I had to order medicines today and I saw "redeem jiomart cashback" on the Netmeds payment page. That's it. Bingo. I recieved 200 discount on my medicines.