Amazon Software Developer Intern interview questions

After applying, I was invited to complete a Online Assessment. In the OA, 2 technical questions were asked. The first one was related to array manipulation and the second one to RegEx. I passes 9/15 test cases on the first and only 3/15 on the second. Despite this, I was invited to a interview. The interview had a behavioral part and a technical part. I found most optimal solution to the technical problem, and seemed to perform good in the behavioral part, but was rejected after the interview.

Not much contact with the recruiter which leaves you lost. I have been left under consideration for several months as of now and it is frustrating that I cant reach out to anyone.