With Sportrick you can transfer an unredeemed coupon from one user to another without additional charges.
- Click on Coupons in the profile of the user to find the coupon
 - click on Info. Please note that only coupons with a green icon can be transferred to another user

 - click on Substitution 

 - insert the name of the person who is going to receive the coupon and click on OK
 

The coupon will be transferred to the other user's profile 