This ´Contact Us´ page can be found in Dashboard -> Pages. The designated widgets areas for this page are: ´Contact Page – Main Content´ and ´Contact Page Sidebar´.
The Address on the page´s Google map can be changed from the ´Contact Page – Main Content -> T – Google Map Location widget´.
You can also use the ´T – Contact Us´ widget which can have Captcha enabled.
Messages sent via this page and the ´Contact Us´ widget are sent to the email address which is entered in Dashboard -> WordPress General Settings -> ´E-mail Address´ field.