Google Voice review - account suspended without any notice

I ported an old number of mine to Google Voice about two months ago. It's a personal number that I don't use frequently, mostly just for incoming stuff but very minimal usage. A few days ago I tried to access it on my phone and couldn't. Eventually I found this page about accounts that have been suspended. I was able to get it reinstated using their appeal link, but not additional info was given.

tl;dr Google can suspend your Google Voice account and not tell you about it as well as not provide a reason it was suspended. Account review is at their discretion.

A negative customer experience. I may port this number out to be on safe side.