Don't look at me. I've run out of tux to give. If the Men's Wearhouse doesn't fix the problem, you ought to go to your prom nude in protest. It worked great for Lady Godiva. She went naked and got free chocolate.

You should definitely complain! This is entirely their fault if they wrote the date down wrong, and they should do everything they can to remediate the problem for you. Maybe they could have it ready the next day (though I'm assuming it's probably too late by now).

Pro-tip: always pick up several days before a big event. That way, at least if there IS an error, you have some time to correct it or work around it.

As a plan B, maybe contact some family members to see if they have suits you can borrow? They are still reasonably common in some workplaces.

You should have ordered from Mens Wearhouse instead.

Man they don't give a tux about you.

Ummm... what school has prom on a Sunday night?? (post was written on a Saturday).