No. StudentUniverse does not guarantee that the prices of student plane tickets found on this website are the most competitive in the market. We attempt to present the best airfare available in the market, but sometimes (unfortunately) we don't win.
We also do not offer any compensation if another customer books the same itinerary as you at a lower price. Airlines can change the price of airfare very frequently based on a multitude of factors. Generally speaking, it's better to book sooner rather than later if you know you need to be somewhere. If you are not finding a price point that works for you, continue to check to see if something becomes available.