Verizon, ATT, TMobile, and Sprint compete pretty heavily to get people to switch. If they didn't you wouldn't see as many advertisements or commercials. Attac

Verizon, ATT, TMobile, and Sprint compete pretty heavily to get people to switch. If they didn't you wouldn't see as many advertisements or commercials. Attacking each other on hidden fees to prevent robot spam would be a major selling point, especially since it's so front of mind for so many people.