Freenome Senior Software Developer In Test interview questions

The interviewer asked 2 question. One related to Test plan. While he added details for Test cases and himself don't know the difference between test plan and test case. Explained the difference with test strategy, test plan and test cases for question 1. For Question 2 it was a coderpad test for writing simple checking of the vowels and reversing them. I completed that too and shown it working. Still they had reported as not cleared the interview. It seems they don't want to hire people just interviewing for the sake and getting there own references on board.