Hello Kirsty Hay,
Thank you so much for your question regarding our theme. If you have the custom field on backend, and if you want to pull it on front end, you need to add the code on the template files as well. Backend field are not automatically visible on the from end. If the theme have the such field and if that is not working, please let us know. We will correct it. Can you please provide us the link of your site as well?
We request you to take the reference from Documentation and Blog post for more help and supports.
Let us know if you have any confusion.