Received a phone call from this number. Did not answer. Found numerous complaints on it at other call tracking sites   http://whocallsme.com/   -or-   http://800notes.com/    I have now blocked the number.

Got same scam call......He makes threats with no information.....I called him back from different number, and gave him fake name, but he claimed he had my file in front of him....I gave him the name of my cat........Simba feline....Threatened arrest if i did not send him money through western union for $3,080.00.........I was not aware simba even had to file a tax return.......Lmao

David left a message for me too.  Said not to ignore or legal ramifications.  I blocked my number to call him back & call wouldn't go through.  I Googled the number & here I am.

Identified his self as David Greg, claimed he was with US Treasury and that we had to go before the US magistrate about our pension, we don't get a pension as of yet. Will just delete

Same thing as yours, will just delete.