I finally got a row A in sector 16 (according to a picture I found, it's like row 40 on floor section, Dallas AA Center), after looking for presales the whole week. So frustrating cause they only accepted credit cards with US billing address
But on friday they opened in ticketmaster through Livenation and they accepted my credit card, getting the seat I mentioned.
Just in case I checked this morning the public sales and the best available sucks. Just middle seats far up in the right or left sides.