Find the best financial services for you at: SMARTFINANCESOLUTIONS.NET - Sim Card Pay by Mobile illegal or not? - I have a friend, who has a sim card that he received from his friends dad. his dad worked for a company which just recently filed for chapter 7 bankruptcy, but the sims never got turned off. now he has a sim that has absolutely everything unlimited and isn't getting billed for it. he had the idea of using the pay by mobile option on most sites to get some stuff for free, because he isn't paying for it. he believes either that the former CEO is paying for it and doesn't realize it yet, or that the service provider hasn't realized that it hasn't been turned off and someone is getting free service. i want to know if it would be illegal for him to charge things to his phone bill that someone else is paying for. and could he get in trouble for it? -