Change your number- they will call every week from now on from a different number ( most carriers only let you block 5 before they start charging you for that, on top of the overage minutes they cause to be billed as well....- dont honor Do Not Call Lists- will hang up on you iof you try to talk to them- or invite them to put up the "sign" they advertise in their call./

they must get paid based on answered phones rather than "sales"