oh and btw, I have a similar scenario.
I'm going to Disney world for a band trip during the same weekend as MLG. I wasn't sure which parks we were allowed in while we were there or any of that stuff. I was being pressured to buy some tickets since MLG JV said they were only 20 left, I decided to chance it and buy a pass Fri/Sat. On Monday we got more information about the band trip and it turned out we were only allowed in certain parks on certain days, the Sporting Complex was not one of them. I am now stuck with my pass that I wasted money for, I may pay $20 fee and use it for Columbus, but I'm not sure if I'll be able to go yet. My band director could have told our class Thurs/Fri since he had gotten that information, but when I asked him about it he said he'd go over it Mon. with everyone else, I knew that there was a chance I wouldn't be allowed to go, but took the risk anyway and bought a ticket that I can't use at Orlando now. Personally, I blame myself for KNOWING the risk then deciding to take it, of course there is SOME fault that lies the my band director and MLG for not giving me the info sooner, but the majority of it was my fault.