Aero Madness Song Challenge

Could someone please explain to me what the purpose of weekly voting is for? If you can't change your original "bracket" then why not just have one vote and that's it. I basically am out of the contest because I misunderstood the contest and picked my favorites not the general publics. If I had known if was based on overall commerical songs then I would have done much better. So, why have me suffer everyweek when I can't change my choices??? I think they should have explained this contest a little better, but maybe that's just me. I did contact support at Aeroforce One, but by the time they responded I had already sent in my entry to be on time. When they did respond, they told me to contact tourneytopia for answers. Whatever!! Not too happy about the way this tour's ticket purchases were handled, either. I hope this isn't going to be an ongoing thing. Well, had to get that off of my chest!!