fortress Buildings SFL/MBJD LLC sold me a building i paid the deposit and they just kept giving me a run around Deerfield Beach florida

i went on line and filled out a building estamator and they called me and told me about this overstock deal and then another company called me or so i thought and they told me that i should go with fortress because of the deal that they were offering me. so i went with it and since then they sent me a print that i cant use because of no concreate plans and not enough discription on the plans to get a building permit and just keep giving me the runaround on it, they will not give me a deliveer date and i have already paid for all the dirtwork and concreate and now no responce from them