It’s not, read the terms of your credit card. It’s basically “I didn’t intend to buy this. I tried in good faith to contact the merchant for return and support. I was ignored. I’m contacting you.”
It’s pretty convenient for companies like Comcast and Google that have poor customer service.
Imagine leaving a 1000 watt space heater on by accident in a spare room for a month, then trying to get a "refund" from the power company because you "didn't intend" to purchase all that power you used. That's effectively what this is - signing a service agreement and forgetting to turn off a service you don't need, causing an irreversible loss of resources. You're not entitled to a refund for a service you agreed to pay for and actually used, just because you forgot about it.
My power company will literally give you a refund for this if you call them. I don’t think I’m entitled to a refund, but good customer service gives me one.
Of course, I get one free pass at that and if I did it over and over, I’m hosed. The difference is that my utility is regulated and has a phone number and a human whose job it is to talk to all customers.
It’s pretty convenient for companies like Comcast and Google that have poor customer service.