It's really hard to find and poorly set up, but this is how I found it:
In the top right on the website, there's a menu dropdown - when you click that, it will ask you to log in, or if you're already logged in, it says "Hi, [your name] +". Click on that and then "My Account". On the account screen, *next to* "Wallet", click on "View >". (Do not click directly on "Wallet", either from the menu drop down or from the account page - only the link under "View >" is working for me.) From that page, click the "Purchases" tab. If your ticket is still active, I think it should show up there. Mine is already expired and they haven't applied the extension yet (which is another issue), so I had to click on "View Expired Purchases >" and it shows there with the expiration date.
It's better on the phone app (at least on Android - I'm not sure if the app is different for iPhones):
In the phone app, hit the menu dropdown in the top left, then click "Wallet". If there's an active ticket, it should show there. If not, scroll down and click "View used/expired tickets."