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I actually called back. David Faus answered and said he was an IRS agent and I owed $5,620 and that they had sent multiple letters. I asked for address they sent them too and they gave me an incorrect address. Tried to pressure me into paying immediately, told them I needed to know more information. They kept trying to get personal information. I refused and they said they would send me an email within 15 minutes and hung up. That was 2 days ago. :)
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