Latest IT bug....
I paid for an EMS seat (had an unassigned seat with no seat available at booking). When checking in I opted to pay for the EMS seat, entered my CC info and got a message saying:
"We were not able to assign you a seat, but your card was charged. Please print your receipt and see a Jet Blue crewmember at the airport for a seat assignment. Please do not attempt another online/kiosk check in to avoid being charged again. Thank you!"
Just great... they're going to give me one of those hidden EMS seats in the E-190!