Who called from 4065305128

Oh wait...I called back and it the operator is saying that "all circuits are busy".

I have received two calls from them, they don't leave a message. My cell phone number is on the don't call list as well.

She asked for my medicare number and insisted it was needed to be sure they were not being cheated. I refused to give the information.

I've had an 8:00 am call June 30, July 1, 2, 3, 5. No one is there. One pm call was about wheelchairs and one pm call hung up. I called back and an auto message says to press 1 to not receive further calls, it will take 72 hours to process. I did that to no avail. These calls are on my phone not my cell phone. What to do?

Are these people a bandit network trying to establish when you are not home to rob it?
Turn the calls into the local Police so the FBI tracks it down State to State.