This propery is not for you. First, while most worldwide hotels let you cancel in the 24 or 48 prior to visit with no penalties, they have a 2-month policy. Like if they were a 5-star hotel that needed months in a wait-list to get a reservation. If you make a reservation, and it's less than 2 months away, please be aware there's no way to cancel it without penalties. In my opinion this is a scam, and as a costarrican myself, I am ashamed of the illegal and dirty practices some places have in place, to take advange of foreigners.
Second, it's impossible to call them to request a cancellation. Even Expedia tried several times, with not being able to contact anyone.
Before making a reservation here, read all reviews and how bad all visitors speak lately of this place.