I've posted this to Apple:
"As part of your testing, you have transfered 0.5 bitcoin from the server I supplied you to your account. Current value in USD is about 1.5 please send the 0.5 bitcoin back to the server's address. Its either bitcoins dont have value and in this case the App should be approved or they do have value and in this case send me the half bitcoin back.

I would like to get from you some details on in what way this App is different from Venmo, Paypal, Square, among others."