Walbec Group interview questions

I had a phone interview with the Walbec Group, which initially went well. Following the interview, I was asked to complete a series of assessments, which I submitted a few hours later. After that, communication from the recruiter stopped entirely. I followed up multiple times over the next few days/weeks and received no response. Several weeks later, I finally received an automated rejection email — with no explanation or acknowledgment of the time and effort I had put into the process.