2 calls today within 1 hour. Caller ID showed CITGO. I didn't answer. I don't answer numbers or callers I don't recognize. Have gotten numerous calls from some yahoo wanting to fix my computer. I said "what computer?" They said, "your computer." I said, "I don't have a computer so there's nothing for you to fix." The guy was really upset at that. I laughed, punched the 9 key several times, and hung up.