Sika Business Controller interview questions

After 2 phone calls I went to an interview in SIKA Brasil, in Osasco city, it was the worst process I have participate. I was there about 15 minutes earlier than schedule, but, they left me waiting for that interview for 45 minutes ! Actually I left a message that I had to leave, but, nobody talked to me. One hour after I left the company without any contact, they phoned me asking why I left ?! I talked to them trying to reschedule that interview, I even sent 2 emails without sucess. It seems that you have to have too much patient to work at SIKA Brasil