Where can I add/edit my shop Contact Details?

Go to the Outlet Shops section.

Here click on the lower top navigation on My Store Account and below on My Outlets.

Then you will see your outlets, and here click next to your outlet on Dashboard.

Now you will see on the left navigation many tools to edit your shop and to add more info.

Find Contact Details and click it.
Now you can add, edit or delete your phone, email and website.