Thanks for your response that is much appreciated.
I have made the change on the dns but this still isnt verifying the domain. I am getting the errors below
Domain Verification Failure:
We tried automating domain verification via HTTP method by adding below files but your hosting server returns invalid, empty, noscript or 404 response when accessed as bot. You could try making the below files publicly accessible to complete domain verification via HTTP method.
I get this error to
Could not verify DNS records. Please check whether you have added above DNS records perfectly or try again after 5 minutes if you added DNS records just now.
Feel free to open support ticket at https://wordpress.org/support/plugin/wp-letsencrypt-ssl/#new-topic-0 for any help.
Thanks
Ben