Nationwide Van Lines Not delivering belongings Plantation Florida

Due to where we lived (Upstate Ny on the Canadian border) they were our only option.  When they arrived August 6,2014 to pick up our stuff, the truck was already half full with other people's items.  On the paperwork I signed when they picked up our stuff, there was a written promise, of delivery happening between August 9-27.  Here it is now September 2, and we are still waiting.  We have been given 3 different delivery dates, none of which happened.  We were told at the end of last week, to expect delivery on Wednesday September 3.  Tried to call today for a time frame, and now it may not be delivered until Thursday!!   How is this company still in business?