REVERB, I WONDER HOW THAT WORKS ???

I have purchased four different items, over 2000.00 and can't seem to get anything shipped, can't seem to get any return e-mails.....Reverb also doesn't answer emails, I almost wonder if they are still operating, but the do take payments on items.............Has anyone had any experience with them  ???   Its a very nice website, but nobody is home..........