eBay Staff Software Engineer interview questions

I was not looking. The company recruiter found my profile from Linkedin and arranged a phone interview for me. However, the interviewer totally forgot about it and did not call me. The recruiter scheduled another time and I did not get call again -- this time, because the interviewer need take care of some urgent issue. The recruiter again made appointment and I eventually talked to the interviewer. However, it took only about 10 minutes, far less than the 30 minutes as originally scheduled. The questions he asked were quite simple tough. I never heard back from the recruiter. The interviewer was not professional and serious.