I received a call from someone claiming to be David Malvo. He left a voice mail that stated "This is David Malvo and this is the last time I will be trying to contact you concerning your tax lien. Call me at 720 259 6219." I was concerned that someone had not received a call warning them of a possibly serious situation so I returned the call. David Malvo answered I explained why I returned the call and was asked 'What is your business?' I explained I didn't have one and he asked again 'What is your business? I again said I didn't have one and he hung up. I didn't think anything of this until I saw the complaint filed on this page.