you can use this to check your ssl
https://www.sslshopper.com/ssl-checker.html (https://www.sslshopper.com/ssl-checker.html)
HTTPS is on
Store URL is set to http:// www dot tranquili-tea dot co dot uk/
Try using https:// (that is the site you prefer)
you need to add the https into your .htaccess file for the where you have your store - if root, then in htaccess root, if in /dir , in the /dir htaccess file
RewriteEngine on RewriteCond %{HTTPS} !=on RewriteRule (.*) https://example.com/$1 [R]
OR this
RewriteEngine on RewriteCond %{HTTPS} on RewriteCond %{HTTP_HOST} !^www\. RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]