sams amusements of ohio Bill Sams ripped me off for $400.00 I gave him a deposit, to buy a game trailer for 1000.00 now he wont answer my calls or give me money back, Internet

i had 8 boxes of balloons in my warehouse and was working a carnival over the summer with a amusement company in ohio, i mentioned to carnival owner that i had these balloons and had no use for them, he said he wanted them, so i brought the balloons the next day, i charged him half the value of the amount i paid for them, he was going to give me money amount of 400.00 instead i told him to apply the money to a game trailer he aggreed to sell me for 1000.00 he said fine, this took place in girard ohio at a church fest in june 2010 the agreement was the 400.00 was applied to balance of 1000.00 on the trailer, well and he said i could pick the trailer up that next week in june, and he would accept payments for remaining balance owed and still let me take the trailer and work it off, well every week i called him there after a different excuse popped up as to why i couldnt get the trailer, well then he stopped answering my calls and today being october 3 2010 he still wont answer my calls and i am out 400.00 and no trailer