Bossman, if it helps, I got my buildings back about a day after I sent a nice follow up email to them. This time, instead of the generic title, I titled it, "Accidentally Sold Buildings". I had bought another movie theater in the interim since I wasn't sure if they'd give it back to me, so I actually had 3 movie theaters when I got the buildings back. Deleted the new one out of courtesy.

Good luck!