I'm convinced there is nothing that can be done to get rid of them. I've tried answering in a foreign language, answering but muting immediately, cursing at them, telling them I'm a minor, telling them I sold the car they want me to buy a warranty for, waited through the message to hit whatever button to be removed from the call list, I've ignored the call, I've answered and hung up, I've told them I'm in prison on a phone that I smuggled in using my ###, I've tried everything I can think of doing but they just keep on calling day after day.