called twice and left unwanted "SCAM" msg ! They can go to hell for all i care !!

Threat of enforcement action, very important .

Don't know who this is, we don't owe anyone and we are sure it's a scam!

Do not answer calls you don't know and never call them back. The IRS will not call you. The IRS won't ask you to pay in i-Tunes cards. The IRS will not wish you "good luck as the situation unfolds". Trust yourself and your instincts - do not let a bully intimidate you by threats that are nothing but hot air.