Hi there, thank you both for the reply.
I deleted the theme and changed it back to the previous one hoping it would just restore. Some things came right but there was still a merging of the old theme with elements of the new one. It took me a while to figure it out but I know now what I did wrong. When I can trying to edit the footer I needed to delete some of the themes extra menus, the only way it seems to exit this page is to publish, I cannot see a save button anywhere. I obviously pressed publish and boom, chaos ensued. It seemed that I changed the whole menu for the site to the theme one, I was able to find the clients previous one and select it as the main menu again. Anyway, I have very slowly restored most of it, I just don’t know how to remove the extra elements from the footer and save the changes without publishing? Thank you for your reply in my panic.