This is some kind of scam or fraud, do not answer their call, do not give them any information.
If you have already given them any kind of personal info, assume they are going to use it for fraud and contact your bank or credit card right away and have your account frozen.
I honestly don't know what these people are pulling, but I know it is dishonest.
That BANDWIDTH.COM Phone Company info only means that whoever is making these calls is probably doing them through a 3rd party that contracts out VoIP, and there is a good chance that this person is anonymous to anybody other than law enforcement with a subpoena... Apparently tons of people were getting calls from another BANDWIDTH.COM number (469-464-9384) and the company itself was powerless to do anything short of cutting off Google Voice from their service.
Called my cell phone this morning at 920AM. Said I filled out a survey looking for a job. Told him I hadn't filled out any surveys, and I'm gainfully employed and not looking for a job. He argued with me saying I did. When I got home, my wife told me that she got a call on the house phone from an individual saying that a survey was filled out pertaining to college. Again, no one at home filled out a survey. Both calls just smelled of a scam.