STOP CALLING ME!!!! soon as i say hello, the caller hangs up. It gets very annoying.  I get called up to 5 times a day on some days and others none. please stop!!

It is some scam. Its a guy claiming you are entered in a sweepstakes for using your visa, mastercard, or american express. Its a scam to get credit card numbers. This guy needs to be arrested or have the FTC come down on him.