A deletion link: well, even two! But still blacklisted: yes. How in the world does that happen? If you don’t fully subscribe (paid!), you seem unable to cancel your account anyway. Another thing pointing to the impossibility of truly deleting your data is a well-known sentence in the ToS which more or less states that everything you submit will be theirs. That never sounds good.
So, what to do, if you’ve submitted content such as reviews etc.? Perhaps try to delete/anonymise them manually. For account cancellation, try this link (so, only paying members): https://www.emusic.com/account/cancel.html and since it seems impossible to truly delete it, you may try http://www.emusic.com/support/your-feedback/ or a message to email@example.com to request deletion. But if they will truly erase your traces? Mwah.