I preordered Heavensward before the game officially announced the preorders at gamestop, so I didn't have a receipt with the codes. I talked to my local gamestop manager and he just printed a receipt code for me. the code works just fine, and does include early access. My gamestop manager wasn't really aware there was early access either, but seeing as I knew about ffxiv more he took my word for it. Sorry your having problems with your gamestop, and I hope you can get your code before early access goes live.