Apparently, the IRS is busy suing everyone (sarcasm). I know I don't owe anything....AND the IRS DOES NOT CALL. Letter, certified letter, guy in dark glasses and suit at your door might be more believable.
Received same message about the IRS filing suit against me. Called 8 times in less than 1 1/2 hour. Another site says this a T-mobile number, but states number is safe. B S !!!