Las Vegas United Dealerships Lost my car stole all of my stuff out of the car such as audio. Las Vegas Nevada

I have a story for you about United dealerships that I think everyone should know. I had two things happen to me first was United Dodgeland could not get me done I brought back there Truck and they sold my trade I was stranded without a car I had to report it stolen.The second thing United Nissan I had a trade once again and once again they could not get me done.I went ahead and brought back there van they tell me my car is missing once again I reported it stolen went back to Nissan and was there for eight hours till they said it was all the way up the I15 at the speedway someone drove me up there tossed the key at me and took off I got into the car and the Radio was not working and all my speakers where taken out.They told me they would take care of it because I have the Receipts for all of it also because it was in there possession at the tent sale at the speedway.Well they did not now they are ignoring me.I have told them all I want is my stuff back and still ingnoring. I need Help

Sam
Las Vegas, Nevada
U.S.A.