Bought TracFone and was told that I could buy a sim card from anywhere. I bought and had the phone registered with TracFone. The phone only has a gray screen, still works but because my son is special needs he cannot memorize numbers so he needs them on the screen. Even though the first rep told me that I could use any sim card the latest one wants me to buy a new card from them before she helps me. I did shut off the phone for several days but that did not work.