Using miles for upgrades
Hi,
I now have enough miles to redeem for an upgrade Y to J on my next trip LGW-DXB.
Does anybody know how the system works.
I know I have to buy a revenue ticket first and then redeem the miles for the upgrade. Assuming J is not fully sold out will I definately be able to upgrade if paying with miles? Or are there only limited seats available in these circumstances. There would be three of us travelling and I would not want to be told after buying Y class tickets I could not upgrade to J. If that did happen, would EK refund the money for the Y class tickets?
Cheers