It's kind of the principle of the thing.
Absolutely. That's what has me fight for each one, even if an initial request for resolution is ignored or rejected.
In one case, my cell phone bill suddenly had $10/mo added to each month. What? I looked into it, and it was for some horoscope service. I don't use horoscopes, I don't use extras (Apps, services, minutes) on my phone... I asked the phone company to refund it, saying I had not purchased this. They insisted I had. In fact, they went on to tell me a little story about how surely my child had gotten ahold of my phone and responded to the offer with "yes" because there's no other way this could possibly have landed on my phone. Well, no, phone company, that didn't happen.
Every single month, this repeated. As if!
I pushed hard for all the money back and for this to stop. I put in a complaint with the CCTC or whatever that was.
Many months later, what did I see in the newspaper? This very matter.
The "service" had been billed to countless people, all without their permission, for many months. Most would not get their money back because they hadn't protested early enough (!).
I fight for my cash, but I also fight for good practices. Every time I stand up around one of these issues, I know I may well be helping others.