If at&t does not provide any official explanation, what's your opinion on how people should respond. The first thing that came to mind for me is to switch over to Xfinity on my next contract cycle.
Frankly, NEVER paying the bill is an option, too. Downloading Netflix is sweet, maybe you can pool with your neighbor? that's another topic
It's expensive to enforce payment.
If you've never been in collections, it's an experience you might enjoy for sport.
If you live in fear of not being able to get a cheap interest rate on a loan for some shit you don't need... well, maybe you'd better not take part in that type of protest.