@TeamYouTube ,
A month ago , I have applied for monetization,but youtube disapproved it. So please can you tell me what is the mistake in my channel. And I have used 2-3 creative commons video but I have put my original voice in that videos ,so please reply me that my channel
The email/notification you've received should have details as to why your application wasn't approved, but some examples would be uploading reused content and misleading metadata. You can check here for tips to increase your chance of being approved: https://yt.be/help/4WPQ