Indeed, please spare a thought for those of us who choose to spend their time trying to help and end up typing loads of useless information in the absence of obviously key facts. Most travel is commercial.

So ignore my previous answer, in this situation you can safely accept the booking and pay for it, then if necessary cancel it without fee up to 24 hours to departure. You would then get everything back without fees, and the only potential downside - apart from the waste of time booking this - is that any Joker or GUF may have expired in the meantime. In the case of GUFs there is some wriggle room for extensions, in the case of Jokers there is no wriggle room but you would still get the Joker back if within the expiry point.