We need to know where you released your new song, and also have your ISRC for the new song.
This information is needed for us to make sure everything is set up right, and also to issue a takedown notice if your license is no longer valid (this can happen if you, for example, stop reporting revenue).
Just select the distribution service you used. If you distribute your music using a record label, select "Other" and enter the name and contact information of that label.
The ISRC is a mandatory dedicated code which is issued to each commercially released sound recording. Your distributor or record label should give it to you or assist you in how to get it. For additional versions (e.g. remixes of your new song) email us at email@example.com.