Some Gamestops are stupid. I have to go to another town just to get a Steam money card because the one in my town doesn't have it. I hate Gamestop sometimes.
Bring the point up to the one nearest you. "Hey, I was just wondering if you guys ever plan on getting Steam cards in? I have to drive out to another store to get them and would find it handy to get them here instead. Just curious." Case-by-case basis, but it's why ours started carrying them. Someone asked about them and by next month they were in stock. But yeah, keep on the Gamestop hate train. It's the cool thing to do.
In regards to the first post, human error is the issue here. Not Gamestop as a whole. Like Mitch said above me, explain it to them and they'll most likely amend the issue. You may want to bring the Metal Gear poster just to be on the safe side though, they will probably want the proof.
Edited by ChrisD, 14 July 2013 - 07:53 PM.