But do we to manually click "send" to send the coupon to the user? or can we set it to be automatically send to the user (without we need to click "send" button) ? From the video demo, i can see that you need to click the "send" button before the coupon is sent to the user.

It would be cool, if there is a feature that the coupon is sent automatically to the user (without we need to manually click the "send" button) and it will be cooler, if we can set a timer (maybe 15-20second or any time we set) before the coupon is sent so that it will natural like human, not look like a bot or robot .