A link to your site

when you check out it now gives u 2 options
1 is 'per unit' and that says 'best way' = £2.10

how do i get rid of the per unit thing and change the words best way to UK delivery
Remove one

Search with the developers tool kit for the text to find the define for it
https://www.zen-cart.com/tutorials/index.php?article=38
https://www.zen-cart.com/tutorials/index.php?article=39