Re: Unable to purchase Mass Effect 3 : N7 Collector's Edition for XBox 360
That is incorrect.
Mass Effect 3 for XBox 360 is still available for purchase, and the N7 Collector’s Edition DLC is a DLC entry for that edition which continues to have the issue I detailed in the original post.
Furthermore, I have already contacted Microsoft’s relevant support and was directed to reach out to EA/Bioware due to the Publisher being responsible for which games it lists in the store.
Additionally, though a slight tangent, I will note that several years ago the corresponding Collector Edition DLC for Mass Effect 2 was made purchasable, so it is not unreasonable to assume the same would be or has been done with this DLC.