Appliance Zone DISHONEST COMPANY - No Refund for Honest Return / Poor Customer Service, Internet

I ordered and received 2 parts (in 2 separate boxes off one invoice) so I could repair my range. When I opened the stove-top to begin the repair I discovered a burned wire connector. End of repair job, new stove ordered, Appliance Zone contacted for return instructions. They emailed me repeatedly: did I REALLY want to return the parts? Did I REALLY want to return BOTH parts? Did I read all their return rules? etc. Yes I did and I explained why, so they finally sent me a Return Authorization.

I sent the parts via USPS and tracked the TWO boxes with delivery confirmation for both on 2/12/2013. They refunded me the price-minus-handling for the $55 part and claimed not to have received the $265 part. Again with the emails (the only way to contact them), sending them their Invoice #, the parts numbers and descriptions, their Return Authorization # plus the USPS tracking numbers so they could have their warehouse "investigate". Now 7 weeks and counting after the return and they are completely unresponsive. They have the new, untested/uninstalled part, kept my money and have ceased communication. I call that fraud. I call them thieves.