I am trying to book bus tickets from Lisbon to Evora and having difficulty. I have tried their contact email but have gotten no response.
First, they ask for a DOCUMENT NR number which I assume is my passport number. Second, when I proceed to the payment page it is not letting me put in my info. Any advice? Thanks

Most local people don't book bus or train rides from Lisboa to Evora in the web.
They just go to the ticket counter and buy a ticket for the next train or bus.