You can complain to the HLURB in Quezon City for violation of PD 957. Also, check your Contract to Sell and payment terms. Kasi, it might be that the payment terms were established for the benefit of both parties, kaya the developer can rightfully refuse your tender of payment. Likewise check your contract as to when the devleoper is supposed to deliver the property to you. AFAIK, the developer should be doing the civil works on your subdivision, otherwise, their license can be revoked.
Hmm...Greenwoods? I almost bought there. Isn't that a Sta. Lucia development?