If you are waiting over 3 days for content after entering your codes, or you are having problems with the code itself then you will have to contact your local PlayStation Support for further assistance.
They will be able to investigate what is going wrong and provide a solution for you.
i have only just acctivated my code , months after i recieved my vita , i redeemed my code and choose esacpe plan , i have yet to recieve my discount code , are you able to help me out ?
mine too!!!!!!!! i bought little big planet and i keep getting error when i tipe my code