[schwine]

I have had a different experience.
I also had a gift card for a Barnes and Noble ebook.
However, in my case I obtained the ebook from a webpage called Chapters Indigo, which sells Barnes and Noble ebooks in the epub format.

I entered two numbers listed on my Chapters Indigo gift card, as well as my address, and I was able to download the ebook without providing my name or credit card information.