To insert a contact form on your contact page, head over to your Info Pages in your shop admin.
You will be able to add in a new page and for a contact form to display, press the paper airplane symbol for the code to appear in the text box. Do not try to edit this code as it will affect the contact form. Hit save and the form will appear on your Contact Us page.
For your Contact Us page to display on your homepage, you will need to get the page added to your navigation menu. Select edit your Main Menu and 'Add a New Page'. You can name this page anything; 'contact us' or 'Get in touch'.
To link your Contact Us page to your homepage, select the page option below and search for your Contact Us page. Select the correct page when it appears as an option and hit save.
It will then appear in your top bar menu on your homepage as below.