diff --git a/email.go b/email.go
index 2530ff7..cee542e 100644
--- a/email.go
+++ b/email.go
@@ -19,9 +19,13 @@ const (
 	KeyCreateSupplierUser = "create_user"
 )
 
+var (
+	c *Client
+)
+
 // GetEmail ...
 func GetEmail() *Client {
-	return &Client{}
+	return c
 }
 
 // Client ...
@@ -40,7 +44,7 @@ func NewClient(cfg Config) (*Client, error) {
 		return nil, fmt.Errorf("nats connect failed: %v", err)
 	}
 
-	c := &Client{
+	c = &Client{
 		Config:        cfg,
 		natsServer:    natsio.GetServer(),
 		natsJetStream: natsio.GetJetStream(),