I got it from nds-card. com But has a sticker from r4i-sdhc. hk Also how do you buy from the website you recommended?
Note helpful at the least. There are many R4's, and nearly everyone released in the last year is like' R4i SDHC (Gold, Angrybirds) 3DS'. What card are you using. A picture of it and the website listed on the card would be fantastic.