Let's say running an ebook service, that cost cost you some money, a portion of your profit will go into building this shop, that will also be used by another party, because you have millions of users and a good trusted brand. in order to sell on that market you sell a some subcription based like a web hosting.
Party B, after using your premuim service, decide he will use your service just as a frontstore, sending your customer to his own website to complete purchase.
Party B, after using your premuim service, decide he will use your service just as a frontstore, sending your customer to his own website to complete purchase.
in your opinion that is a fair situation?