Hello, Regarding your task, we can assure you that another candidate was hired for excelling the task better than the one you sent. As for sending feedback, our policy and interviewers did not mention sending any feedback in case of rejection. However, we mention through all our interview phases that we will reply only in case of acceptance, during a certain period of time, most of time it is 5 days and if you did not receive any then you are not accepted.