Originally Posted by
boosh
They must not like the look of my face then. can other people confirm that you can upgrade using miles and vouchers in the lounge?
I tried to upgrade at the lounge on Saturday and the guy at the counter told me that they would only do it for Elite and Elite + members. I'm gold so it was ok but wanted to upgrade with cash, not miles (25k miles for IST-KBL was a bit steep), and he told me that cash upgrade is only possible at the transfer desk.
I therefore assume it could be possible at the transfer desk on airside but you would have to go through security again though.