Swiggy — refund of my coupon for order id [protected]

Swiggy team cancel my order an its been 3 days still didn't recieve any coupons as my refund, they are just playing games and providing, their customer care support is not picking up the call and just talking arrogantly on the chat and they dont know what is happening. Just the bunch of ill literate people as they don't know what is the exact issue