Same thing happened to me...it's so frustrating. I tried all the fixes suggested, and finally gave up. Someone (I can't remember who or where) suggested downloading the YouMail app, so now I do get notified of voicemails from that app (plus it gives you voice to text recognition so you can read the first part of the voicemail within the app, which is a nice perk). I don't know whether Samsung or my carrier--which is Straight Talk--is responsible for the no voicemail notification; it seems like they keep blaming each other. Either way, I'm beyond disgusted that this issue hasn't been formally addressed. My suggestion to you is to download YouMail.
... View more