Hi, I have a fairly specific question regarding what's allowable. Let's say I have an app where you can buy FantaBucks with real money. You can use FantaBucks for various things in the app. You can also sell your own items to other people for FantaBucks. Let's say someone buys a sword for 5 FantaBucks, and then sells it to another player for 10 FantaBucks--could I allow them to convert those FantaBucks back into actual bucks? In other words, Apple has strict rules about how you have to take money from customers, does it have any rules about giving them money? The applicable guidelines seem to be 11.4 and/or 20.4, but neither seem to really apply to this example directly.