They don't have a clue on how to run a secure server, either. I ran an SSL Labs check of their secure server (https://chessokdotcom), and here is the result:
https://www.ssllabs.com/ssltest/analyze.html?d=chessok.com
A big, fat "F" due to supporting the insecure SSL 2 protocol. 
They might have the best of intentions, but would I buy from that site? No way, José!
These guys have no clue how to sell software. A labyrinth to find the software you want, then click on hundred buttons like an animal to buy it ...
... and then it doesn't download. Errors out. After a dozen tries, wait for it, the link expires!
Then you have to email them for another link. They don't answer. You wait.
Waiting ...
I'm mad as hell.
Oh, there's a skype link in support pages. How did I miss that? Me happy now!!!!
Add contact.
"Contact Pending."
Waiting.
...
Nobody there.
Aaaaaaaaagrhhhh!
-Izmet