Don't rent a car from Economy Car Rental in Liberia or anywhere in Costa Rica. You pay upfront for a certain number of days and get no credit back if you return early. That includes the car rental AND any insurance you purchased. Buried in "an authorization" is the sentence saying no refunds, but I missed it and you have no recourse. Very obnoxious staff as well. It's a real, old fashioned rip off, so be careful!!!