diff --git a/modules/web/handler/activity.go b/modules/web/handler/activity.go
index 7b9933e..2b996b2 100644
--- a/modules/web/handler/activity.go
+++ b/modules/web/handler/activity.go
@@ -649,21 +649,24 @@ func ActivityFirstRechargeBackInfo(c *gin.Context) {
 		resp.CanRecharge = true
 		return
 	}
-	val := data.Amount - call.GetUserCurrencyTotal(a.UID, common.CurrencyINR) - rechargeInfo.WithdrawingCash
-	if val < 0 {
-		val = 0
-	}
-	val = val * conf.MaxBack / 100
-	now := time.Now().Unix()
-	if p.Birth+conf.CD >= now && data.Reward == 0 {
-		db.Mysql().Update(&common.ActivityFirstRechargeBackData{UID: a.UID}, map[string]interface{}{
-			"reward": val,
-		})
+	if data.Reward == 0 {
+		val := data.Amount - call.GetUserCurrencyTotal(a.UID, common.CurrencyINR) - rechargeInfo.WithdrawingCash
+		if val < 0 {
+			val = 0
+		}
+		val = val * conf.MaxBack / 100
+		now := time.Now().Unix()
+		if p.Birth+conf.CD >= now && data.Reward == 0 {
+			db.Mysql().Update(&common.ActivityFirstRechargeBackData{UID: a.UID}, map[string]interface{}{
+				"reward": val,
+			})
+		}
+		data.Reward = val
 	}
-	if data.RewardTime > 0 && val > 0 {
+	if data.RewardTime > 0 {
 		resp.Draw = true
 	}
-	resp.Back = val
+	resp.Back = data.Reward
 }
 
 func ActivityFirstRechargeBackDraw(c *gin.Context) {