Same has been happening to me too....they've been calling 3 times a day around the same time for the past 3 days. I haven't answered yet because I don't answer numbers I don't recognize.
I have been getting 3-5 phone calls from this number for the last week. They call me anytime during the day and most times I am at work. I have tried to answer and no one is on the line. I have also tried to call them back but the phone doesn't ring.
I got 3 calls today I answer the last time and nothing.... I called back and it said I had won a trip to the prank phone call and then i hung up and didnt listen to the rest.... is there a way to report this?