Problem is, the Internet. If you hope to attract new customers, it doesn't help if your reputation gets around that you screw the old ones. And that reputation can get around quickly, on the Internet.
After the promotional period ended, I decided to cancel the subscription, as I was not going to pay the "regular" price of over $50 a month for newspapers which were already stacking up around the house - papers that I already read on my phone or computer.
Call again. The person answering says they can't help you, but when pressed, they admit they can check to see if the account has been cancelled. They claim it is. We'll see.
UPDATE: They responded to my third e-mail, finally and promise the account is cancelled - next week!