Companies generally reserve the right to change the terms of the service at any time. In particular, in the fine print for cell phone contracts as per your example, the provider reserves the right to modify the terms of service at any time.

Also, I'm not sure how you're making the logical leap that it is an endorsement of piracy or the legality of piracy.

In the end, if you want servers in Argentina or Brazil, it's been stated numerous times in multiple threads that you'll have to find a willing host and be willing to pay for this server on your own.