Also got the same message,but I have to laugh because I lost my job almost 2 years ago and did not make enough money to file but I did anyway . and I've had my taxes done every year prior by tax companies. Yes these people WILL burn in hell for all eternity!!!!
I called them back three times. First 2 I told them I needed their address to have my lawyer send harassment papers to. They hung up. Third time I did the same thing and asked for the address and he told me to "sit on a banana peel and slide down somethin" I sasked him to repeat what he said and I told him he was an [***] and didn't even speak English.