Didn't get Locks armor set GameStop pre-order!

I pre-orderd Halo 5: Guardians at GameStop and NEVER got Agent Locks armor set! I mean come on! They cant have messed up that bad! Please help! I just want it already! FYI 343I you guys did an amazing job at Halo 5! Tell the crew great job!

U need to go their and Tell them they send u the Code via email if u gave them ur Mail or as a Letter both also possible