Why would the plugin not work?

Hello @wood1e

Would you please make the screenshot public? Also, please send me the URL of your website.

hi

The site is live so I have taken screenshot and disabled the Royal mail option, but when enabled, see here: https://app.screencast.com/JhIIXCGMmsFt6

When I re-enable ‘Table Rates’, it works again: https://app.screencast.com/13ne1SPWnbyCP

here is screencast of enable/disable: https://app.screencast.com/6rzcImLq9VqmG

Hello @wood1e

You need to assign Royal Mail to the same shipping zone of the other UK zone, WooCommerce triggers only one zone based on the address. Please, try that.