I have just tested the site on a couple of PC's running windows and I registered as new users each time. After filling in the details to register I got the email and clicked through from the link in the activation email - when I did this the billing address was empty with only the new button showing - I had to re-enter the details again.
This was working fine - before I upgraded to essential and before I had issues with the shipping options.
Any ideas why it is not being pulled through.
Many thanks in advance.