Nextlabs Android Applications Developer interview questions

At first I got a audio interview link where I need to submit the recorded answer. Each question has a time limit and we need to record and submit the audio within the time. After I got a machine task but after submitting the machine task there is no reply or anything from their side. The machine task has a time limit of 7 days, so I tried to make the task perfect as possilbe but all that effort is for nothing, I will be happy even if I got a feedback or reply form them.