Trying to setup my Goodreads author account

I have my Goodreads and Amazon accounts linked. My book (the kindle edition at least, the paperback isn't listed yet) is up on Goodreads. However it's showing up under an author account with the same name as me, one with over 100 books and by the looks of things, it may just be a bunch of stuff by multiple people with the same name as me.

So how do I claim my author accounr and have my actual book and only my own book linked to it?