Remove old Wedding Wire account from Registry/website look up

I created a Wedding Wire account when I first was engaged, but later we created one under my fiancé's email and that is the account we have used for our registry and wedding web site and all things related to our wedding. We were able to successfully deactivate the old account, however, one of our guests recently let us know that when they tried to look up our wedding website and registry they still found the old account there even though it didn't link to anything. Is there a way to remove that entirely so that it doesn't appear in the search?