I have an LG brand Tracfone that I bought from Wal-mart. Sometimes at random, it won't let me send a number, but instead gives me the message, "Emergency Only", on the screen. How do I bypass this or what number do I call for the company to get rid of it? I tried calling the number I used to activate it, hoping to eventually get to the right prompt for a person to help, but that didn't work. Thanks.