Question

"I am trying to access the "contact us" details to change them to my new PO Box, but I can't find it under the contents section. I have found contact us, but there is no option to change the address" 

 Answer

1. Login to Joomla backend

2. From the drop down menu click on "Components" > "Contacts" > "Manage Contacts"

3. Click on the contact you want to edit underneath the "Name"

4. Change the details here and click on "Save" when finished. Note that you can disable the contact from being published and also disable what is displayed on the live site from tabs on the right hand side.