Thanks for your help.
I used support chat to help deactivate the account that I created in error (very quick and helpful support person) and then I logged back into the app with the correct email and all is good.
Phew.
Thanks. Good advice.
I actually entered an email address but (I think luckily) didn't enter the one that I use for EN so EN opened as a new program. EN on the web is still there.
I just downloaded and installed and EN did not restart as usual. When I restart it is asking me for an email address and is behaving as if it's a new install. What should I do? Hopefully local folders can be recovered.