kulula/travelstart?? what's going on.....???

Checked pricing on flights on travelstart before booking my June holiday. Once I saw pricing I booked accommodation around the flights that I had in my budget. I can't book a flight and the flight pricing increases everytime I try to. The pricing of a departure at about 6 in the morning and return 7 days later has increased from about just under 3500 to over 5500 and I still cannot book a damn flight. It is like trying to play a lottery and is false advertising at its best.... I want someone to sort this out or pay me the accommodation that I have spend on thus far. A time of excitement has become a\sorry kids don't know if we going"pathetic really!!!"""