First, be patient.
Print out any proof of purchase that you may have for your records.
Magister Frost is most probably just busy and will get back to you as soon as he can. Perhaps try contacting him on the Undercroft if you have not already done so.
"The difference between the man or woman who's a practicing Satanist, from an identity Satanist is that the practicing Satanist looks at the picture, while the identity Satanist studies the frame."
-- Anton Szandor LaVey
"Anyone without a sense of humor is too pretentious to be a good magician."
-- Anton Szandor LaVeyLife EverlastingWorld Without End