That is what the manager of my local Best Buy told me last year when I saw the Halo 4 Season pass listed as "free" on the sticker above the cards. I picked out one and took it to the gaming department register, the video gaming rep scanned it and it came up as $0.00. I asked him if I could grab another one and he said sure, but when he scanned the second one it all of a sudden scanned as $24.99. The rep said he would have to call over a manager to do an override, and everything went downhill from that point on. The manager that came is one of those managers that deny everything. The last time I had an encounter with him was when he denied the use of an @Gamer coupon because he claimed I couldn't combine it with a "sale price", mind you with the coupon + sale price the game still cost like $9.99 or $14.99. He immediately said he can't do an override as each one of those cost $24.99. I showed him the sign over the cards that stated "Free", to which he informed me that it is only free if it was bought in combination with the game. I pulled up my order and told him I literally bought the game a few days ago in this specific store, and if there was anything he could do for me. He once again said no because I would have to purchase both of the items at the same time. So at that point I told him I would like to buy another game and return the other one, he just shook his head and said he could no longer offer me the promotion because it was already "over". I told him that the sign is very misleading then, because it just states that it is "free" and nothing about any kind of promotion that is required. He said I was right about that, and told the gaming rep to take down the sign. This is the same guy that sold my reserved copy of Halo 4 Limited Edition to his buddy, as my reserved copy "magically" vanished on launch day and one of the other customer service reps stated she saw him remove the in-store pickup confirmation with my name on it and sell that copy to his friend who he let into the store 15 minutes before opening.
Anyways back on topic, so what is the moral of the story you ask? Don't be greedy, had I stayed with one I would have gotten the deal... lol!
You should stay clear of that manager lol, looks like he got a beef with you for some apparent reason haha.