There really were none.

I received a call about an interview, and the HR representative's tone was extremely unpleasant. They spoke very quickly and knew nothing about the position; they couldn't even provide a general overview. They kept going in circles, saying, “You’ll know when you come for the interview. The manager will tell you,” to the point that I really didn’t even want to waste time attending the interview. I honestly have to ask: if you don’t even know the basics of the position, why are you working as a recruiting HR representative? You have absolutely no professionalism. I verbally declined during the call, but today they called again to remind me to attend the interview. I was completely speechless. After I declined again, they hung up without even saying goodbye. This level of professionalism is truly unbelievable............