I was banned several years ago.
I contacted them and kindly asked to be unbanned and apologized for being a penis on their facebook. When they kept asking "Are you and autobot or decepticon?" I kept saying I'm a Tin Man.
They immediately lifted my ban and all has been well ever since.
Once you realize, it is the front of their company in this new world, I can understand where anything more than moderate criticism gets you banned from speaking.
There's forums to bitch about things and you can always press the contact link on the webpage to voice your concerns. Public facebook posts aren't always the best way to make a point.