Hello,
I am using Simple IAP System in unity for my Playfab to Steam purchases. The asset has detailed integration documents for Playfab and Steam but whenever I attempt to purchase something in game it says "Payment Declined." Apparently, both of the docs are working correctly so it must be a problem on my end. When I look at the Playfab events history it says that the payment was declined by the provider. I've talked with the asset creator he said it would be best to post on here since the error is too generic to provide useful info for him to troubleshoot. I made sure to use the Steam addon in Playfab and even assigned my publisher web API key and still nothing. Any advice?