C-JES sends warning against illegal ticketing for JYJ's concerts

C-JES sends out a firm warning against illegal ticket sales surrounding JYJ's concerts. On July 26, they posted on their official homepage:

Hello, this is C-JES Entertainment. 
We have been informed that tickets for JYJ concerts are being sold illegally in some parts of Asia like China and Hong Kong. 
In any case, if there's ongoing event not promoted through official mediums like C-JES homepage and JYJ's Facebook page, then it's definitely not authorized by C-JES. Moreover, ongoing business which is claiming to received permission for concerts like the documents below are considered illegal as well.  

Please be careful not to buy tickets from illegally conducted events which are not promoted by C-JES's official sites to avoid suffering from any inconvenience. 
Thank you.