Grand Events Party Rental

I am a manufacturer of custom luminaries, and sold my fixtures to Mr. Ryon back in March 2011. I even shipped him demo units to try. I even have a signed contract from him. His credit card was declined, and I have tried contacting Mr. Ryon, since the middle of May - daily, but he is always "Too busy". Neither of the ladies that answer his phones seems able or capable of assisting me either. There is not a single reputable event professional, through ISES, NACE or MPI; in the Fort Worth or Dallas area that has heard of Mr. Ryon or his company "Grand Events & Party Rentals". I would be cautious, and always ask for payment upfront before doing business with this company. Also, his website has been "under construction" for a VERY long time - that worries me as well. A tough learning experience for my small company - as I'm holding $7,000.00 in merchandise built specifically for his companys needs. Thanks for nothing (not so) Grand Events & Party Rentals of Fort Worth Texas.