No Visual Voicemail on Samsung Note 9

My wife and I switched to Xfinity from Verizon a month ago. She had a Samsung S8 and I have a note 9. The visual voicemail works fine on her phone, but mine says that my device is incompatible and to use the native visual voice mail. THERE IS NO NATIVE VOICEMAIL APP ON MY PHONE, NOR CAN I DOWNLOAD ONE. The call in voicemail works fine except i never know when I have a voicemail. I have missed 3 very important voicemails because of this. I'm so frustrated I'm ready to go back to Verizon.

I do not want to spend hours on the phone or in the store trying to get this fixed. I need a solution NOW!