Flipkart — Flipkart 2000 rupees coupon code isnt working showing egv token call failed

I'm trying to apply for a gift card costing 1000 INR. Every time it shows the error "EGV Token call failed".
No one helps from customer support, pathetic service. looting people and running their business on miseries of other people.
I received this coupon through the AXIS Bank credit card scheme and was not satisfied. My details are as under :
Name - Karthik P
MB No.
Email- @gmail.com