iPhone 13 Visual Voicemail

I’m having the same as many I’ve seen online and In the forums of Visual Voicemail not working on my iPhone. I have the option to call but not visual. I been dealing with the same issue for several months with no luck getting it fixed. I actually gave up months ago on fixing it but decided to try it again these last few days. Not to my surprise nothing has changed after chatting with numerous clueless representatives and hours of phone calls still no luck. You would think with this being a known issue their would be a solution by now. I even mentioned that could reach out to tier 2 support but they are still as clueless as ever. I’m so frustrated and over Xfinity all around.