Just use itunes and go through each code. 1. Close iTunes if you have it open. *If you have used your password in itunes recently, it will automatically redeem the entered code.* 2. Open iTunes again. Go to "Redeem" 3. Enter the code and click redeem. 4. If Itunes asks for your username and password the code is GOOD! Otherwise, Itunes will tell you if the code has been used. 5. Press CANCEL! If you enter your password, you will use it! 6. Repeat these steps for each code you want to check. You dont need to reclose and reopen itunes if you don't enter your password and redeem the code. when done right, you can use enter the code you want to check and then cancel and then go to the next code, cancel, and continue in that fashion. Just like how my instructions indicate how to do it.
I have received about 200 emails in the last few days, so if I didn't respond to an email, it was entirely by mistake. If you don't mind, please send it again.