Adding credit

Hi,I recently appeared playing the part of the magician in the movie Savage House, however I was not given an on screen credit. I have tried uploading proof that it is me (call sheet),however i keep getting redirected to the same upload page. This is my first screen appearance and so do not have any other on screen credits. Do I need to create a profile first? How do I add my self to the cast list?

Many thanks,

Steve McShane M.M.C.