James Carrick
Dear Eowyn723,
The purchase in the AppStore will be registered against the Apple user you were logged on at that time.
Were you logged on as a different user then ? Unfortunately we have no access to commercial details or who has purchased what, that is all under the strict control of the AppStore. if its possible you had a different user then, you will have to approach the AppStore to see if you can recover the user account details.
Hope the above helps.
Yours Sincerely
James.