Today ​I have taken the exam I got problem while taking the exam my exam is @11:30 but some audio problem it's got reschedule @12:45 again also I faced problem question was some time appears and some time it's not so because this I can't able to take the test and screen went off suddenly I don't know why and now I'm checking in mail but I got mail like I was failed,

For this whom to approach any one knows? ​