Limited Edition DLC codes not working

So I recently tried to use the DLC codes for the Fotus class armour + emblem and Warzone req bundle + Fall of Reach that I received for pre-ordering the Limited Edition Halo 5 guardians from EB games , only to have a message appear saying the codes did not work and to try again or contact xbox support. Has anyone else had a similar problem, or know what to do? I don’t want to have wasted my money on codes for DLCs I don’t get.

yeah bro its happened to me i tryed to redo it about 5 times and still dont work?