Orders from Diamond Art Home

Has anyone else not received their orders from Diamond Art Home? I placed an order on April 11. It was supposed to ship in 3-5 days. No shipping notification yet and it still hasn’t arrived. I’ve sent 3 emails with no response. No answer when I called. I really like the picture I ordered but I’m thinking that maybe I should cancel it. Is this some kind of scam?
What would you do?

I think I would cancel at this point. They are still getting good reviews as late as yesterday, but even those are saying missing diamonds. Honestly, I question the validity of them being made in the USA.

When you go to their FB page, you will read tons of negative recent reviews.