I've followed the documentation at: https://developer.viveport.com/documents/sdk/en/api_iap.html and implemented everything as documented. When I try to purchase in my app, I get a message saying my wallet is empty. The account I'm using has credit card defined already with a PIN code. Why do I need wallet coins for In-App Purchase? Also, I'm not able to add coins in VR. Even if I try to top up the wallet via the desktop app or browser, it asks me for my wallet code. I don't have any wallet code. I couldn't find how do I get such a code.
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