Did you pay for it with your credit card? I had a huge problem with a product that I bought on ebay for my real car (misleading add, long story) Nobody wanted to help me, not ebay, paypal, or the company I bought it from!! I called my credit card company and after doing some paperwork and PROVING that I got screwed, I got all of my money back AND I still have the part (poetic justice
). I know that you bought the motor from your hobbyshop, but you might have some kind of extended warrant with your credit card. That might help get things started. ALSO, i know that you are supposed to deal directly with Trinity for defects, but I would think that your hobby shop should be helping you out with this.