LSEG (London Stock Exchange Group) Software Developer interview questions

I applied since last year and I received a call from the recruiter. The next round was speaking to the hiring manager about my skills and experience. I was sent a task to complete in few days. I completed the task in three days and it has been three weeks with no response or acknowledgment the submission. It was just a waste of time and I felt like they probably had an internal candidate.

I just done the exam with 76% score, It's only first part. I dont know 76% is goo enough. I have problem with self confident. I wish I can pass the interview.