Because car shipping industry does not operate on set schedule like airplanes or trains, but work similar to Uber or Taxi cab - price and availability fluctuate.
We made significant effort to make our prices accurate and offer solution where we absorb fluctuations in price/availability for a small optional fee of 2%.
If we miss dates - we provide our service for free plus add extra 4% of our money for every day late towards carrier purse up to 20%.
Bidding 20% more never failed to move a load.
We have it in written - see section 4 of Terms.