See, if you take hosting from say me or i_kill or XYZ co, you will interact with a person. Right? You can ask that person to provide you info about the person you contact for support. Its not as complicated as you think.
If you want to have a trial of a hosting account
PM me. I have already offerred free hosting accounts on the forum. See this *www.thinkdigit.com/forum/showthread.php?t=30182
From the questions that you are asking, I think you are a newbie in hosting. Please don't even think about having your own server!! (Pt. 2 of i_kill's post) Take cPanel hosting (or some other shared hosting).