To start the process, you need to log in to the dashboard. You should have received the dashboard URL, a user name and password by now. If not, please check your inbox, or make a request.
To get to the login in page, enter
Dashboard URL: http://www.yourwebaddress.com/wp-admin
(If your website is in a subfolder and your domain is forwarded, enter the main web adress/foldername/wp-admin)
User Name: XXXXX
Password: XXXXXX