How to add a contact form to the contact page
All Underground themes include a built-in Contact form, allowing customers easy access to reach you.
To enable this in your Underground theme open: Admin > online store > Pages
Create a new page or open an existing page that you would like to use for this and add any content that you would like to show customers.
When ready look to the right of the page and you will see the: Theme template dropdown. Here choose: page.contact
Click save when done. This will load a contact form onto that page when viewed on the customer side of your store.
Navigating to this page within your theme editor will also give you some more page options ( theme depending ) allowing additional configuration.