NotificationServices for remote notification is really working???

i'm working on ios and i'm implementing apns push service

just receive notification is working well but after receiving notification, badge icon is never disappeared.(i used NotificationServices.ClearRemoteNotifications every Update call) even reinstall app is it really working?? NotificationServices for remote, is working only receive notification. GetRemoteNotifications method or remoteNotification property and any others not working, too

anybody use this feature?