Hello Richwebs,
Thank you for your response and for the video.
1/ Please check how it works when Advanced checkout is disabled via Theme options > WooCommerce > Cart/Checkout Layout.
2/ Please try to test how it works with the default WooCommerce theme – Storefront activated on your site.
3/ We would appreciate it if you could provide us with the results, your thoughts on the matter, and describe the desired outcome.
Kind Regards,
8theme team