I have fixed my issues with redeem code page.
Login like always http://www.gamesas.com/redeemcode/ it will say you need to be logged.
logout
create new account ( you will be logged on now with new login )
go to http://www.gamesas.com/redeemcode/
logout
Change / open browser now to IE / FF ( didnt check that, but it can work...so bonus code dont go to new created account )
go to http://www.gamesas.com/redeemcode/ again and login with ur "old" login / mail. ( i was used mail as login )
I have redeemed key after 3 days of trying.
Good luck.