TMJ Concepts interview questions

Was emailed immediately to schedule and interview by Human Resources. Never spoke to anyone directly but scheduled and interview date and time with Human Resources through email. Once I arrived to company location there name was on the building directory outside but the suite where they are located had no name on it and the door was locked with all the lights off. I attempted to call the number that was on the email and the number was no longer in service. I googled the company and same thing with the number on their website no longer in service. Still trying to make my interview I went into other businesses located in the same office building and none of them were familiar with this company or where they were located. Just before leaving I asked another person that worked in the development and they directed me towards the suite listed for them and it remained locked with lights out.