Contacting the support/email of each Citation site individually and letting them know of new NAP change.

Contacting the support/email of each Citation site individually and letting them know of new address and phone number . You must be able to identify what sites have wrong address and phone number due to we don't have any of the log in or password details as to the Seo company we used to build these citations has gone out of business. A e mail will be provided for your contact and following up .