Plain and simple, if you are DJ and are preparing mixtapes or dj mixes that contain music that isn't 100% owned by you, then we as a service cannot help you. We are a Distribution company that delivers original music and content from creators. Creators in this case are defined as Bands, Solo Artists, Producers.
If you didn't make the beats or the production that means you don't own it. If you have the permission to release a mix or mixtape then we'd need to see an agreement and paperwork for each and every track contained in a mix to consider distributing it.
We can only distribute mixes for select partners, and only if requested prior to you submitting the mix. Because of the filesize of mixes, not all partners will be able to carry it. For the low sales that these mixes provide, we always recommend you provide them for free via SoundCloud and contact our marketing department to promote the release.