I have a weird situation, I hope I wont get messed over.
I wanted to use the credit for B6 but I could not find a blue flight under $99. Someone upthread suggested a silver air flight which I booked. I then called jetblue and they said that it cannot be cancelled for travel bank, only for a one way voucher on the same route for the same Pax.
So I was still within the 24 hour cancellation ad I cancelled. I got a refund. I then switched to United and bought travel bank.
When the airline travel credit posted, it posted as a $180 credit for the jetblue which was refunded and a $20 credit for United.