In INGS, the referral flow is simple.
1. You refer your friend by sending them their referral URL.
2. When your friends click on the URL, they should see a prompt for them to enter their email addresses. When they enter their email address, the 'Friend' reward will be sent to them via email.
From the email, your friends will be able to copy their coupon code and use it in an order:
3. If your friends then go on to make a purchase, you will get their reward.
Note that the friend does not need to create an account, nor use the friend reward that they redeemed in order to complete the referral. They would just have to make a purchase!