Snap Bitmoji Illustrator interview questions

around a month ago someone from snap Inc. contacted me via linked in saying they have reviewed my resume and portfolio and they think I would be a good match for one of the positions available as a bitmoji illustrator, after a phone interview they asked me to do an illustration test. it took me almost 20 hours to complete the test based on the samples they provided. after 1 week a generic email came saying : although we saw some strength in your background , but we do not think you are the match for this position(it was a no reply) email. it seems that they didn't even bother to review the test. no feedback at all, they didnt even let me defend my work. i am pretty positive that I did a decent job. I can not accept it so easily as not being match to the position. I do need some explanations. a robot just sent me a generic email that they send everybody who applies online and does not get an interview. so why bother to interview me and kill 20 precious hours of my time? this is not fair. this is not fair at all. you can not do that and get away with it. you can not do this to artists. I played my role the best I could but you didnt. this is not fair! I am sorry for such a well known and big company when you treat people like this, what should I expect from small companies? you better review the way you treat artists