You can get your ticket in several ways,they are
1) When you purchase tickets,your attendee account has been created , You should received a conformation mail with a copy of your tickets.
So it is more important for you enter a proper and valid email address to get proper information regarding to ticket.
2) In case You have not received copy of ticket via email,than log in on conference site as a attendee and get attendee dashboard and manage your ticket.
you have received log in detail via email.