Tech support can be received by anyone who is playing the game. We'll have a support email address for people to contact us directly, and the forums have a tech support area that will be opened on the day of release. The forums are going to be the quickest and probably best form of support for most people.
The game (both CD version and digital download) also has a help file to get you through basic technical support issues, it has a Player's Manual for the most basic of instructions to get you started, and there are very helpful playing tips inside the game itself that can be of great help to most players.
 Oh, and about the price break- sure that is easy enough. I'll set a price break at 5 copies or more, you can get a 15% discount. It will be selectable on the order form.