From their website:
The new Rackham Store requires to create a new account. We couldn’t keep your previous accounts for safety reasons (password).
The Rackham Store will be close the 5th of February between 9.30 to 11 A.M. for maintenance. Thank you for your understanding.
Because of technical problem, the 50 % off was not available on some articles. Now the problem has been fixed. Sorry for the inconvenience and thank you for letting us know.