Messed up metadata

[Anders]

I tried to add the Kindle edition of the above book Magician by Raymond E Feist. I got confused with the numbering* and entered the wrong metadata (number of pages and ASIN code). I discovered this when trying to add the sequel Silverthorn. Now I can't find the book and correct my error.

Current metadata
ASIN: B008WXHZO6 / 435 pages

Should be
ASIN: B008TGOMWY / 835 pages

Could someone please help and update it for me?

* Apparently the Kindle edition of Magician covers two printed books which makes the numbering of books in the series confusing.

[Banjomike]

The ASIN you want to use is already used on this other book
http://www.goodreads.com/book/show/16...

[Anders]

Ok, then everything is as well (as long as I don't add any more books). Thank you.