Platform design

Loyalty program for cross border trade. The idea is to connect businesses at one side of the border with customers at the other side using coupons posted by businesses in an online platform that can be accessed from customer's cell phone using an app. Every transaction involving a coupon should generate points that should reflect in the customer's account and which the latter should be able to use in eligible businesses.
The end goal is to allow businesses know who their customers are and what are their preferences considering that customers only use cash when purchasing in foreign businesses.