I would suggest putting a sign on the machine and not using it again. I think the hassle of getting a refund is not worth the $3.50 you'd get back.
Under the change machine there is a number on there. Also there is someone who work's there at night!
No one If you have lost your money the owner does not do refunds If it just does not work the owner will have it fixed in due course The machines are tricky the are 2 digital displays one is part of the machine the other is below that one displays payment if after putting in money the machine does not start you will need to add more money it will tell how much more is needed
Go next door to the barber shop.
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