Originally Posted by
Tiger_lily
I changed an LX F C+M to an LH F award late last year. I was required to pony up the full miles in exchange for a refund of the cash element. It is not possible to simply swap a non-LH F C+M award onto LH and expect not to be hit for the change.
The call centre are well aware of the procedures so don't expect to get away with anything.
What he said. i.e. in the same way that you'd have to pay the difference in taxes/charges if you make an alteration.