File a complaint at https://complaints.donotcall.gov/complaint/complaintcheck.aspx . Make sure, the next time they call, you inform the caller, even if no one responds, that you do not want to receive anymore calls.
Keep getting calls from this number. I requested them to remove me from their list. This only causes them to hang up on me and call me from a different number. I have this number blocked through my phone company. This hasn't helped since whoever these people are rotate numbers.