Reflektion Test Engineer interview questions

I was called by the HR to follow up and confirmation of the interview for more than 14 times which was very annoying On the interview day itself HR called 9 times.I was in office in meeting and after every 15-20 minutes she would call. I had applied for Testing position but when the interview started I was asked core development questions, code errors and how to resolve them , about application architecture which was totally irrelevant to the profile I was applying for and at the end they said they need someone who is expert in Python. I was not asked even a single question about SQL which was mandatory as per the information shared with me. HR had no idea about the requirement of the profile. It would have been better if instead of calling me so many HR just have find out technical requirements and asked a Python developer to attend the interview