It's been 11 days since making a test purchase from this site. I have not heard a single word from them since the day I gave them my money. I've used different gold selling sites in the past, but this is the first time I've been outright frauded. I've now opened a PayPal dispute - we'll see if they finally respond to me now.
DO NOT DO BUSINESS WITH MMOCAT.COM.
Edit: shortly after posting this review, I got a refund from the seller via the PayPal Resolution Centre. I guess I can't say they frauded me at this point, they just chose not to deliver on my purchase, and then didn't communicate with me until I forced their hand. Buyer beware, as always. Do your research, and if a "business" smells fishy, it probably is.