Materialise Software Development Manager interview questions

I applied online to this opportunity. It didn't took long before an interview was arranged in the beginning of october with an internal recruiter of the HR department. At the end of the interview I was told that I could take some weeks before getting any feedback. According to the prediction I did not get any feedback. In the following months I tried multiple times to phone the recruiter without any success. I didn't any response to my emails either.