Originally Posted by WineCountryUA

As already mentioned this credit can only be used on an old UA operated itin.

If you can not use the credit now, you can extend it another year
-- using a cancelled ticket is "change flight process"
-- change you cancelled ticket to a super cheap UA ticket -- under $100 (some as cheap as $50 may be possible) - http://www.flyertalk.com/forum/unite...ht-credit.html
-- you will need to pay the change fee
-- The remainder of the flight credit -- the ~$1300 credit minus the new cheap ticket will be issued as a credit that is good for 1 year from date issued and can be used by anyone.