Help for Refund of downpayment for a condotel

Hello guys.. need help po..ask lang po sana ako legal advise regarding our case. Kumuha po kasi kami ng condotel unit in newport city. Nagbayad po ako ng full downpayment (spotdownpayment) total amount of Php 1,040,850 last Feb. 2016 pero until now wala pa po ako nappirmahang kontrata except dun sa Request for Reservation and Offer to Purchase which is ako lng ang nka pirma at walang pirma ung side ng developer base sa dokumentong hawak ko ngaun. Tanong ko lang is pwede ko bang i refund ung downpayment na binayad ko? Pumunta na ako sa opisina nila pero hindi daw sila nag rerefund. Legal po ba eto? Please help us us..need po ur legal advise.. Maraming salamat po sa tulong..