Same thing happened to me. Didn't leave a voice message.

Didnt leave a message ...they have been calling for days..when I called back there was a recording they asked me if I feel this call was made in error to hit #5 which I did but they still keep calling

Same thing.  IRS is going to garnish wages and other bullcrap.   Called today and  yesterday.   Put the number on reject.  See what manufactured number they call from next time.   Wish they'd go to hell.

Bs

Recd a call saying they had a lien and he could help me, i knew i didn't, i told him if he called again, i would report to better business bureau and he hung up.