If you dont have an account:
Exemple 1: Jan Kowalski (personal no. 8607XXXXXXX).
To log in for the first time he has to click on the "REGISTRATION" button.
Then he fills in the form in which he writes his name, surname, personal number, e-mail address, password, etc.
After the first phase of the registration the customer will receive the link to activate his account on given e-mail address.
After the activation he enjoys the full access to the website.