Luckily I checked here during work and this thread reminded me I needed to cancel.
I went to the website on my phone, and upon signing in, it gave me two options. "Download the App" or "Manage Subscription" so I tap the second one and it takes me to a new page that times out. I figure no big deal, I work in a dungeon, so service is horrible. I go back to try again, and now when I sign in, the only option I'm presented is "Download the App"... That seems odd.
I spend ten minutes installing the app. Load it up, sign in, go to manage my subscription and it immediately takes me out of the app and back to the web browser.
Good grief.