diff --git a/mcbot b/mcbot
deleted file mode 100755
index 8d2fb57..0000000
Binary files a/mcbot and /dev/null differ
diff --git a/models/user.go b/models/user.go
index b61e8d3..51eccff 100644
--- a/models/user.go
+++ b/models/user.go
@@ -9,7 +9,7 @@ import (
 
 type User struct {
 	gorm.Model
-	TGID   int64
+	TGID   int64 `gorm:"unique"`
 	MCName string
 	Status int // 0: pending, 1: normal, 2: banned
 }
@@ -38,15 +38,13 @@ func GetUserByMCName(mcName string) (user User, err error) {
 	return
 }
 
-func CreateUserIfNotExist(tgID int64, u *User) (err error) {
-	err = database.GetDB().Where(
-		&User{TGID: tgID},
-	).FirstOrCreate(&u).Error
+func CreateUser(u *User) (err error) {
+	err = database.GetDB().Create(&u).Error
 	return
 }
 
 func (u *User) Delete(tgID int64) error {
 	return database.GetDB().Where(
 		&User{TGID: tgID},
-	).Delete(&u).Error
+	).Unscoped().Delete(&u).Error
 }
diff --git a/services/mc/helper.go b/services/mc/helper.go
index 973dae7..56a39ec 100644
--- a/services/mc/helper.go
+++ b/services/mc/helper.go
@@ -32,7 +32,7 @@ func GetLeftPlayer(m chat.Message) (userName string, err error) {
 	return
 }
 
-func HandleJoinGame(userName string) {
+func HandleJoinGame(userName string, mention bool) {
 
 	u, err := models.GetUserByMCName(userName)
 	if err != nil {
@@ -42,7 +42,9 @@ func HandleJoinGame(userName string) {
 
 	switch u.Status {
 	case StatusNormal:
-		SendMsgToPlayer("欢迎回来！", userName)
+		if mention {
+			SendMsgToPlayer("欢迎回来！", userName)
+		}
 	case StatusPending:
 		SendMsgToPlayer("你还没有绑定 Telegram 哦, 5秒后你将会被踢出。请在群组中发送 /bind <你的 MC 用户名> 进行绑定。", userName)
 		time.Sleep(5 * time.Second)
@@ -83,7 +85,7 @@ func CronKick() {
 	utils.CronStart(func() {
 		users := su.GetAlivePlayerList()
 		for _, u := range users {
-			kickPlayer(u)
+			HandleJoinGame(u, false)
 		}
 	})
 }
diff --git a/services/mc/mc.go b/services/mc/mc.go
index 7003076..15cd1d0 100644
--- a/services/mc/mc.go
+++ b/services/mc/mc.go
@@ -80,12 +80,12 @@ func onSystemMsg(msg chat.Message, overlay bool) error {
 				logrus.Error("user join error ", err)
 				break
 			}
-			go HandleJoinGame(userName)
+			go HandleJoinGame(userName, true)
 		default:
 			break
 		}
-		m := tgbotapi.NewMessage(conf.GetBotSettings().GroupID, fmt.Sprintf("%v", msg))
-		conf.Bot.Send(m)
+		// m := tgbotapi.NewMessage(conf.GetBotSettings().GroupID, fmt.Sprintf("%v", msg))
+		// conf.Bot.Send(m)
 	}()
 	return nil
 }
diff --git a/services/tgbot/bot.go b/services/tgbot/bot.go
index 750ceb3..e861b1a 100644
--- a/services/tgbot/bot.go
+++ b/services/tgbot/bot.go
@@ -60,11 +60,16 @@ func Run(sendFunc func(string)) {
 				}
 				if m.Command() == "bind" {
 					logrus.Infof("id is %d", m.Chat.ID)
-					models.CreateUserIfNotExist(m.From.ID, &models.User{
+					err := models.CreateUser(&models.User{
 						TGID:   m.From.ID,
 						MCName: m.CommandArguments(),
 						Status: 1,
 					})
+					if err != nil {
+						m := tgbotapi.NewMessage(m.Chat.ID, "绑定失败, err: "+err.Error())
+						conf.Bot.Send(m)
+						return
+					}
 					m := tgbotapi.NewMessage(m.Chat.ID,
 						fmt.Sprintf("绑定成功，你的MCID是%v", m.CommandArguments()))
 					conf.Bot.Send(m)
@@ -88,6 +93,18 @@ func Run(sendFunc func(string)) {
 					conf.Bot.Send(m)
 					return
 				}
+				if m.Command() == "get" {
+					logrus.Infof("id is %d", m.Chat.ID)
+					u, err := models.GetUserByTGID(m.From.ID)
+					if err != nil {
+						m := tgbotapi.NewMessage(m.Chat.ID, "你还没有绑定")
+						conf.Bot.Send(m)
+						return
+					}
+					m := tgbotapi.NewMessage(m.Chat.ID, fmt.Sprintf("你的MCID是%v", u.MCName))
+					conf.Bot.Send(m)
+					return
+				}
 			}(update.Message)
 		}
 	}