void OnPurchaseConsumedError(int responseCode, string token)
{
var res = InAppPurchaseResponse.ByCode(responseCode);
SetErrorAndReset(new PurchaseError($"Cannot Consume the purchase: {res.Description}"));
}
void OnProductPurchasedError(int responseCode, string sku)
{
var res = InAppPurchaseResponse.ByCode(responseCode);
SetErrorAndReset(new PurchaseError($"Cannot Purchase: {res.Description}"));
}