A Smart Telephony Platform
It is a kind of top-up customer purchase from an admin .
In the admin you will find -Services - refill coupons option In here admin will create coupons and admin can provide that coupon number to their customers for recharge purpose.
You can see the refill coupon section will look like above.
Used option for those 2 coupons is marked as true now also used date is updated for those 2 coupons.