bug fixes

src/main/java/com/caimei/service/order/impl/OrderServiceImpl.java

@@ -130,7 +130,7 @@ public class OrderServiceImpl implements OrderService {
         String freight = "";
         if (pinkage && freePostageCard != null) {
             freight = "0";
-        } else if (collect || pinkage) {
+        } else if (collect || pinkage || freePostageCard == null) {
             freight = "-1";
         } else {
             freight = "-2";