I bid for upgrade CUN-PTY-BOG and was successful, money taken from my card immediately.
CUN - PTY on 737-800 with the nice seating with foot rests etc, then an E190 PTY-BOG with the 4 across business seating which was a little tight, though we were the only people in the cabin anyway. Same meal on both flights.
Miles awarded were those of the original economy fare bucket.