Cottingham Collision

I bought a welder from this guy named Terry Cottingham, for $550 USD. He was saying he knew nothing about it and he didn't have a plug to check it. But it described like it was looking like new. When I brought it to my shop to check it, It wasn't working at ALL! The main transformer was burned up, and when I tried to return this item back to the owner he declined - refused to take it back. Then I asked him atleast give back half the money that I paid for the welder, he refused again and said, "It is what it is. If it needs fixed you are going to have to fix it." *** WARNING: IF SOMEONE DEALING WITH THIS GUY HE MIGHT CHEAT YOU OR LIE TO YOU! :WARNING ***