User blog comment:Kaloneous/Mass Effect 3 Ending DLC Denied and PAX/@comment-64.254.189.101-20120315054341/@comment-4043223-20120315060505

From what I can tell the original source was a Polish site called "CD-Action" that posted the claim

(Link Here)

This is also confirmed by Game Front as the original source of this claim. (Link here)