I filed a complaint with them . The calls started as soon as I got Vonage. I returned their call, as they didn't leave a VM and they said they would take me off their list. NOT! They said they're associated with Vonage, and I've complained to them also. I found out who they are by doing a reverse phone number search. I have the National Do No Call Registry, but these jerks seem to get through. I'm going to try and block their number.