constant calls, when I pick up they hang up.

I don't recognize the number.

I just got a call from that number, I didnt answer and they didnt leave a message.  did the same thing happen to you?

This number keeps calling. If I answer they hang up. If I don't answer they don't leave a message.  My brother keeps getting calls from the same number which the same results.

Called on my pay-as-you-go phone. Something about being a senior citizen.  Didn't wait for them to finish up, I had already wasted one of my limited minutes.  I'm getting tired of paying for some company's ad.

If it weren't illegal, I would inundate them with text messages and phone calls of my own - to the point making it impossible for them to call anyone else.