Are there any places where I cannot purchase NFL Preseason Live? 

NFL Preseason Live is only available to users located inside the United States, Bermuda, Antigua, the Bahamas, and any U.S. territories, possessions and commonwealths (including American Samoa, Guam, Puerto Rico and the U.S. Virgin Islands) - collectively, the "NFL Preseason Live Included Territories". You are not authorized to use NFL Preseason Live if you are located outside any of the NFL Preseason Included Territories.