Has anyone used the upgrade vouchers you get at 80 tier points yet? How flexible are they, do you have to use both returns on the same journey or can you break them up?
Have not reached those dizzying heights as of yet. ii)
If it helps they are quite flexible with the amex upgrade vouchers, in that you can use one voucher to upgrade two people one way. The only thing they don't allow is leaving part vouchers on file....
Using one return on one journey and the other on another should be fine. 8D