Where on the homepage are you wanting the shop page excerpt to display?
Is it as one of the selected pages in the Featured Services section of the homepage?
The Trusted theme will display the excerpt of any page (including your shop page) when the page is selected to be used as either one of the Featured Services or the About Section.
These two locations are the only places where the excerpt of the shop page (or any other page) can be displayed on the home page.
See the screenshots below which shows how this works.
