- more mtwm callback

controllers/mtwm_callback.go

@@ -52,3 +52,15 @@ func (c *MtwmController) NumberDowngrade() {
 func (c *MtwmController) OrderModified() {
 	c.onCallbackMsg(mtwmapi.MsgTypeOrderModified)
 }
+
+func (c *MtwmController) OrderCanceled() {
+	c.onCallbackMsg(mtwmapi.MsgTypeOrderCanceled)
+}
+
+func (c *MtwmController) OrderRefund() {
+	c.onCallbackMsg(mtwmapi.MsgTypeOrderCanceled)
+}
+
+func (c *MtwmController) OrderPartialRefund() {
+	c.onCallbackMsg(mtwmapi.MsgTypeOrderCanceled)
+}