Sinch Senior Java Developer interview questions

I was shared the coding round test. I attempted it, the entire code ran successfully but was not updated by HR. After multiple follow-ups from the HR that shared the coding test link, she replied saying that I scored 58% and passing marks are 60%. I asked for test score link because I ran the code, checked it later as well and seemed that I wrote correct code. No replies, post that. So simple message is if hiring is already done, you should not waste time of developers who could be doing something progressive.