Social Construct interview questions

Pretty generic interview. Was given a brief overview of the company and after a few questions about my education and experience was given a take-home assignment to be completed in 5 days. Submitted that in a week through an online portal. Been more than a month now since that with only one response about them being behind schedule. No feedback on the work done or any form of response even after emailing them countless times. This has been an extremely frustrating experience especially when I had to carve out time after my regular work hours to do their project, which by no means was a small one. Best to stay away from these kinds of companies.