Bad business practices. They screwed up the reservation, were AWARE that the reservation was set for the wrong day, and not only refused to make accommodations, date changes, or refunds, but even refused to admit that they were at fault. And, after reading reviews from people who have stayed there, I feel like I dodged a bullet.
As of June 1 2015, JetBlue has began charging for all checked bags, including the first checked bag, on its lowest priced fares. All checked bags must not exceed 62 (157.48 cm) in overall dimensions (length + width + height) and cannot exceed 50 pounds (22.73 kg).
The JetBlue baggage policy does allow for oversized bags or bags that weigh more than the weight limit provided that there is load availability on the flight. However, there are additional fees for oversized and overweight bags. JetBlue does not accept bags that are larger than 80 inches.