Car rent cancellation due to no cars available.

Hi..good evening today 11Aug, I book car rent via website do you spain. We paid €476.22 via debit Card.for 14 days, at 3PM the car rental (alamo) castellon train station said No cars available until next week.No notification from do you spain even email or message so we cancel and want money back.they said cannot refund because we claim after time collection.how they works..even I'm not got the car. Please help us to proceed. I'm only a few weeks here for business at CDT. It can be bad image for Spain as a country since i was a foreigners..