Graphem Solutions interview questions

After a brief phone screening interview, they sent me a ZIP file that contained PHP, HTML, CSS and JavaScript so that they can test my programming skills. There were instructions embedded in these files as PHP, JavaScript and HTML comments as to how they wanted it to be programmed. They said that I had to complete the test within 4 hours and that I had to email it back to them as a ZIP file after I am done. I did the test like they wanted and followed up a week later. But after days and weeks, I did not hear back from them. They didn't even tell me if I passed or failed. They ghosted me. I find that so rude and disrespectful.