Thanks for this - I'm trying to work out where in the rules this would be a reissue - I know the taxes that should be collected would change, but it seems to me that under the rules, nothing would change. If you just changed the date here, surely you would be due to pay APD and therefore if they didn't reissue, then you're likely to have problems exiting the UK without paying all the taxes, right?

I don't mind paying the APD in this circumstance, I'm just wanting to make sure that this wouldn't trigger a ticket reissue and therefore a possible repricing.