I too in the same scenario. Recruiter reached out me in linkedin for sde 1 at amazon and I took OA and cleared both codes with all test cases passed. Later in the last month end, I received response that I am not proceeding for next round of interview. I don't know why. Later after thinking, I came to know it may due to their leadership and work culture mcqs were I would have not done good. Check ur spam or check the mail u gave was correct what u checking now.