I created a new google account with a random fake name to get Youtube TV but forgot to...

I called my bank first and they told me that they couldn't directly unauthorize a purchase before it goes through, but they did give me the phone number that was shown with my previous transaction. I called the number (**********) and it turned out to be Google's customer service. I'm not totally sure what their options were but an automated voice asked a few questions and I pressed * and * consecutively, before being connected to a real operator. After that I explained my situation and they explained how they actually have a system that allows them to track transactions directly. They asked for the exact payment amount, the card number, the cardholder name, and the billing zip code. That's all it took for them to find my subscription and cancel it.