They're vouchers. They're only good for a limited number of flights, and you can't use them online; you have to call their 1-800 number to try to use them. They'll tell you for which flights they can be used. The "value" they state when offered to someone willing to give up their seat is way over priced.
They're United Airlines; they don't care - they don't have to...
“They’re United Airlines; they don’t care - they don’t have to... “
Just wow, that sounds like an awful headache. No wonder no one would get off, nor do I blame them now! Do other airlines do this when overbooked or just United?