When you buy a ticket from a event that's hosted on Ticketpass, you should instantly receive a confirmation email. This will be sent to the email address registered to the account that makes the booking - if you can't see it in your inbox, take a look in your junk/spam. This email contains your booking reference, event details like time, location, date, a breakdown of how much the ticket cost, and a link to your My tickets account.
Your actual tickets will arrive in a second, separate email that is sent when they're assigned. Some events have auto-assign switched on and others use manual assign. You can read more about assigning here. If you haven't received this email with your tickets attached, it's probably because the organiser is using manual assign, which means you need to head to your My tickets account and assign them to yourself or whomever is using that ticket. Either click the link in your confirmation email or head to ticketpass.org/login to access your account using the email and password you used to make the booking.
From there, click Assign to me to send them to your email or someone else to send them to the friend/family member who's using them. There are more detailed instructions here.
If there are no tickets in your account, please contact support@ticketpass.org quoting the email used for the booking and the event that you booked tickets for and we'll help you find them.