Unprofessional Staff

On Thursday last week I was contacted regarding a job interview. The person I spoke to did not introduce herself but said she would confirm all the information in writing. I received no correspondence and when I contacted the company this morning to check the address, the switchboard person could not give me the information and said she would phone me back. This was 9.15 and my appointment was 10.00. I am still waiting for the return call!! There are two addresses on Google and I took a chance with the closest one. On arrival, the receptionist went to tell someone I was there, came back a while later to tell me the position was for a junior - i am not a junior! I asked why I had not been contacted and apparently they had sent an SMS which did not go through. Why then did they not phone me????? The person concerned did not have the decency to come and tell me herself and apologize - the receptionist had to do the dirty work and no apology. Had they read my CV they would have known all the details and not phoned me in the first place! The level of unprofessionalism is beyond belief!