Planet Software Engineer interview questions

Got a call from the recruiter at Planet (Berlin) for an interview. The initial process moved very quickly and the HR team was in frequent communication for the first several rounds of interview. The main in-depth interviews were technically not the most challenging I've ever faced - just general software development questions and a friendly discussion with the interviewers. After this point however, all communication ceased. This after having acquiesced to their preferred interview time slots which did not match what I had requested. When candidates have spent time and effort on the interview process, but for whatever reason did not advance further, the least we expect is a clear yes/no response or an indication as to how long it will take to arrive at a decision. If silence is all that is on offer, this is very disrespectful. Reading through other experiences here, it is clear Planet needs improvements in this regard.