diff --git a/backend/app/Constants/RefundType.php b/backend/app/Constants/RefundType.php
index bbb8616..4fab8f4 100644
--- a/backend/app/Constants/RefundType.php
+++ b/backend/app/Constants/RefundType.php
@@ -13,15 +13,18 @@ enum RefundType: int
 {
     use EnumConstantsTrait;
 
+    #[Message("Refund before shipping")] // 未货前退款
+    case RETURN_BEFORE_SHIPPING = 1;
+
     #[Message("Refund after return")] // 退货退款
-    case RETURN_AND_REFUND = 1;
+    case RETURN_AND_REFUND = 2;
 
     #[Message("Partial refund after return")] // 退货后部分退款
-    case PARTIAL_REFUND  = 2;
+    case PARTIAL_REFUND  = 3;
 
     #[Message("Refund without return")] // 无须退货的退款
-    case REFUND_WITHOUT_RETURN = 3;
+    case REFUND_WITHOUT_RETURN = 4;
 
-    #[Message("Flash refund without return")] // 下单后闪电退款，尚未发货，无须退货
-    case FLASH_REFUND_WITHOUT_RETURN = 4;
+    #[Message("Instant refund without return")] // 下单后闪电退款，尚未发货，无须退货
+    case INSTANT_REFUND_WITHOUT_RETURN = 5;
 }