Priceline.com another Priceline bait and switch huntington , New York

Ok here we go... Priceline.com bait and switch...booked a special package with car rental and flight was for 6am to 10am flights departure. Later when booking the actual flight is was switched to a late evening flight...not what the promo offered. this screwed me because I missed the very event I was intending on in the afternoon. Customer service just repeated the same garbage they are required to read...cannot make changes you are screwed! never use priceline.com again becasue they promo something but after you book it, it changes.. It was supposed to be a 3 day weekend and it turns out to be less than 30 hours????