Please help deleting authors and fix the synopsis on an unpublished title?

[BookMojo]

I am publishing an anthology on 2/14/14. I believe someone other than me posted the title to Goodreads (and I dont know who) because it is saying I dont have permissions to edit details of the book. A few of the authors dropped out and the synopsis says fourteen authors when it is only ten now. Can you change this?

Also the authors that I would like deleted are:
Danielle Torella
Dahlia Salvatore
Liv Morris
Kate Lynne

Thank you so much for your help!

[Deon]

Done

[BookMojo]

Thank you!!!