I bought a property at Fortuna Golf also.
The developer ( San Antino or Promiciciones Eurohouse 2010) never issued a Bank Guarantee to me.
They requested that the deposit & 30% monies be transferred to Plus Advisors, who then passed the monies on to OLE International - the developers agent. I have proof of this.
They currently state that they never received fully the monies transferred to OLE International only part of the monies. OLE International are being totally unhelpful, and in fact told my Solicitors to tak to their Solicitors.
My Solicitors have started a criminal case to obtain the necessary documents - any advice you have would be most helpful.