public GamebaseResponse.Purchase.PurchasableReceipt GetPurchasableReceipt()
        {
            if (adapter == null)
            {
                GamebaseLog.Warn(GamebaseStrings.PURCHASE_ADAPTER_NOT_FOUND, this, "GetPurchasableReceipt");
                return(null);
            }

            return(adapter.GetPurchasableReceipt());
        }