Had the trial, it worked great for specific airport, I wanted to subscribe to use the service but I cant its saying You cannot purchase a map you already have. To manage existing maps, go here.
even though I have no airports in my manage area. I had it there before but it wouldnt let me subscribe with the airport in my list so i removed it and now I cant add it back t osubscribe. then when i go to manage it says contact technical support. I emailed using the webform and getting no response