Search engines have programs called spiders that run through all the various sites on the web and index them. It would be impossible for any of the search engine companies to accept requests like this from people, because they would just be absolutely inundated with requests.

Best thing your aunt can do, is make sure to contact all of her clients, and let them know about her change of location. Updated business cards in the post, a mass email to all clients, phone calls... All viable options.