Great question — answering as the UphillTech team:
Apple doesn't pay you, Linkshare does, make sure you fill your payement method there. Also, if you're linking to apps make sure you're subscribed to the european affiliate program as well if you'd like to maximize your affiliate profit, otherwise you'll just get a share with your US traffic. You can use Afflr to dispatch your traffic to the proper affiliate network.
Full answer by davlr: https://stackoverflow.stackexchange.com/a/14402165 (CC BY-SA 4.0).
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