No Voicemail Notification Icon

I have Moto G6 running on Consumer Cellular network with AT&T SIM card and service from AT&T, including voicemail. I have been through this with CC Help Desk and they can't solve it. They said they'd turn it over to AT&T but no word from anyone after that. Running Android 8.0 Oreo. Voicemail is working with left messages but no notification icon shows. Also, I have all notifications on and notification dots allowed but no notification dots appear on any app icons. Voicemail is pretty useless without knowing when there is a message waiting. Any ideas?