RollBack CreateUserWizard_CreatedUser?

I'm using a separate table to save extra records with UserId as the primary key.

I'm saving this data in the CreateUserWizard1_CreatedUser method. In this method the user is already created, so I was wondering if I have any error, is there any way I could do a RollBack and erases this user in case of an error? Or maybe use some kind of transaction?

Thank you a lot.
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