Girl, your best bet is to call the hat shop in MK yourself and have them read you a code from a card. I had baught a pair in Epcot's Mouse Gears and it was around the time of gold ears boom. I was going crazy. With thanks to Snuggles over there, I was able to get in touch with the hat shop (it wasn't easy), and eventually had them read me a code.
Good luck.