Business ProfileforReal McCoy Custom

I purchased a product from Real McCoy Custom using the instruction on their website to email *********************** The owner of the company replied, **********************, and instructed me to pay him using a Pay Pal invoice which he sent to my email. It came directly from **********************, the owner with whom responded to the email on their website. I requested that I pay him $255.00, which I did. He shipped me the product via **** mail service. I received the product and it was not functioning properly so I reached back out to ********************** for help. He instructed me that he would send me a new part which he asked me to please install and his speculation was that it would fix the problem. He didn't send the part. I requested the part weeks later and he finally did send it. When I received it, I couldn't understand how to disassemble and install an electronic part inside a musical instrument effects pedal (naturally) so he told me to return it to him for a refund. I asked for a shipping label and he told me to select a carrier of my choice for convenience. I sent it to him. It was delivered. Proof of delivery was given to me by Federal Express, photographic evidence of the package at the delivery address that ********************** provided. ********************** has disappeared, unresponsive. Finally, he responded. He told me he didn't receive it - which I replied to with the photographs of the delivery at his address. He will not reply again now and he is STEALING $300.00 from me. He's a business owner selling products on his website and in retail locations who is stealing from a customer. I'm livid and I want a refund but I also want verification that he will stop doing this to customers who respond to his advertising expecting to purchase products from him. He is running a scam and he's stealing from me as well as others, I'm sure there are others. I want a refund Immediately and for him to be stopped.