Originally Posted by
El_Duderito
Note: you cannot combine a Joker with the GUF1/GUF2. TAs need to have availability in the lowest 'next' cabin to make the booking whereas BAEC GUF bookings require award seats in the higher class.
You most certainly CAN combine a Joker with a GUF1/GUF2! You need to phone BAEC's GGL line. They will use the Joker to open up availability in the next higher class and use the GUF to get into it. You 'pay' the avios for the lower class. I just did it today! Used avios for World Traveller, then a Joker+GUF1 to put our daughter in Word Traveller Plus from TLV-LHR-JFK-LHR-TLV. I think that it only works with straight avios bookings though, not cash or part cash/part avios.