My Coupon lost without claim

Hi Friends,
I do buy from lots of online store and apply lots of coupons..
But Yebhi has weird policy of coupon.
They have single time usage of coupon which gets used incase you miss chance of payment. Like while paying your net got disconnected or your window gets closed or card is temp. not accepting.

They even won’t regenerate that coupon in case it gets lost and you haven’t used it.

Very bad method.

Never buy from their.