Speedmaster contact
To the OP. I've bought sometimes from these guys with great success.
I did have one nightmare return. I suggest using email as it creates a trail. I also used the phone but I logged the date and time for each call, who I talked to, what they said and what I said.
That said, I recognize I'm paying a low price for a product of decent-or-better quality. There's a reason they are cheap, and junk customer service is toward the top of that list. Be persistent, and document, document, document.