Missing REQ Pack

i redeem a code from the HCS London in the webpage and i dont get the REQ pack the code was dipsydoodle and i try to redeem it again and i get a message saying i already get the code redeemed i want to know why i dont get the REQ pack

Hey OP, there were some issues with the first 2 play packs that we’re given away and nobody received them, it’s very unlikely they will be given out now. A make up plat pack was given out shortly after the second on on Saturday and then a few others given out. The next giveaways will be at Denver, though I hear the Halo Wars 2 stream next week might also have something. Keep an eye on the streams for more codes