They'll get replacement tickets for a free ride on Moonbeam Brown's Bullet Train.
For a hundred grand sell them tickets to the Vomit Comet if all they want is weightlessness. Use proceeds to help pay for the wall after taking care of the aircraft fuel bill
If they are dumb enough to pay 100 large while this venture is in the concept stage before there is actually a real thing, you are dumb enough to lose your money. No pity from me.
*ping*
Folks got scammed. Happens to the gullible all the time.
IF he is being candid. He needs to find a couple of other purchasers and file an involuntary Chapter 7. That should get their attention.