greyhound tickets: So a couple weeks ago I searched for grehound tickets from Charlottesville VA to Oklahoma city for JULY and there was a 14 day advance purchase option. Now I'm not seeing it anymore, only the refundable fare that is twice as expensive as the 14 day advance purchase.. Since it's stil WAY more than two weeks before the dates I'm searching, why is the 14 day advance purchase fare not still available.. Anyone know much about how Greyhound works? What days to buy, what days to get the tickets for? My travel dates are VERY flexible (almost anytime in JUly would work) but I'd like a round trip, to be IN OKC for 7 days, not counting the 24 hour travel time.. I'd like to BE THERE for 7 days.. Any help? Thanks|||Ticket master .com