The Value to Date of a player doesn't seem to be calculated properly in regards to currency exchange rates. I'm testing CAD (Canadian) transactions right now and the 0.99 USD price tier for iOS equals 1.39 CAD. But when validating with PlayFab using the CAD currency and the 139 price value it appears that PlayFab is equating 1.39 CAD to be 1.05 USD when it should be 0.99 USD.