I found out when i was trying to sell my M60 Retail code : O
This is what Korgoth mentioned at the WarRock Forums.
We have decided to no longer accept the use of the old Retail Box Codes. After contacting Elephant Entertainment we have determined that all retail boxes that were sent to the official retail stores have either been sold or returned to Elephant Entertainment if the store did not sell them.
The Retail Stores have not been selling these retail boxes for over a year and in some cases haven't had them in stock for over 14 months. We feel that 12 months was more then enough time for those players that purchased them to have activated them.
If you have purchased a retail box you will have to contact the company, person or business that you have purchased it from to obtain a refund.
Update: I know that a lot of websites that were selling these retail box codes are saying things like" If you send in a ticket along with the UPC code off the bottom they will put the code on your account" or "Just send in a ticket with the receipt and picture of the code" I just have to say that those will not work. If you did activate the Retail Box code prior to July 16th there is no way the code will be excepted.
Some of us, won't have to seek for it anymore and some of us, Got lucky : O
So no more selling/buying retails, Because it will be 100% scam