Contact is a custom page template.

To replace the theme contact page with contact 7 contact – please see this help: http://help.wpresidence.net/article/contact-7-for-contact-forms/

You select the custom page template as in below screenshot:

Page looks like this – https://wpresidence.net/contact-us/

Contact page details are set in theme options:

 

Social accounts are set in Social & Contact