Sorry if this has been discussed already. I did a search and couldn't find anything on this. Discover has 5% cashback for wholesale clubs this quarter. Since, Costco doesn't take Discover, I hear that you can just buy Costco Giftcards online. I did some research and noticed some mixed reviews on this. Some people reported that their online purchases did not get categorized as Wholesale but as General/Miscellaneous. Has anyone tried this and know for sure?