Magnitude Capital interview questions

I received an email about two tests, one comprehensive test to answer 3 questions after reading an article regarding C# and a coding test with 2 tasks. I finished all of them in one day. One coding task is looking for the errors in a binary search. The other task is to check if an array needs to have more than one swap, if more than one swap is needed, return false; otherwise, return true. The next day after I submitted all my tasks, they sent me an email saying that they are not going to process my application. I have no idea why they don't want to process. I am very sure all my answers and tasks results are working perfectly.

First online coding test in about 100 mins. One online question :find the error in an binary search function . Second, phone interview about data structure and c++ details . Third ,onsite interview about some data structure and algorithm questions .