Bumper Boyz... Stay Away!!!

So, long story, but I'll try to keep it short....
Bought a bumper off of Bumper Boyz in March. I was at the swap meet and looked through a few and thought I found a good one. Not so. Chrome rubbed off and flaked after I brought it home and tried to polish it. Also, they jacked it up around the bumper bolt holes so the bolts didn't sit flush. Told them I was not confident they could produce a good part, didn't want an exchange because I already looked through all the shitty ones they had, and wanted my old core back and a refund at the next show close by in May. They argued some but agreed. So, come May, I drove 1.5 hours, paid to get in, only to find out they forgot to bring my core and didn't have any cash or check to refund me. I was a dumb *** and left with them the bumper I bought initially. He wrote me a statement saying he would send me a refund check and ship out my bumper at his expense when he got back to LA. This was about a month ago. Now, he is claiming the owner wont pay to ship my core back and I have to pay the shipping. $70 they say, or I can wait two months and drive two hours to the next show around here. They also keep putting off sending my refund. They said today they have to balance their books first.... It's been almost a month since the refund was supposed to take place and they still have my original core, the one I bought, and they have almost $400 of my money. I've heard every excuse imaginable. I'm about to blow a gasket. They have provided me the worst possible buying experience anyone could have. Do yourselves a favor, and don't make the mistake I did. Stay away from Bumper Boyz.