On this page fill in the data for the user and also for the company.
On the company details section once you fill in the VAT number (for the countries within the European union) the Company name will automatically show up.
Click Next once it is completed.
You will be redirected to a page where it says you should check your email.
In the email please click on "Activate my account"
The link will redirect you to a page to set a new password