Used cashstar for an IKEA gift card promotion, got $400 worth of GC with my Discover credit card. Got a confirmation email straightaway (Discover let the transaction go through but flagged it as potential fraud and temporarily restricted my account, I just had to approve it on an email they sent me). The bonus cards arrived about 5 hours later, and the main card arrive about 12 hours later. Now usually when you purchase gift cards on official websites, they arrive immediately. So, if that's not going to be the case, cashstar should make it abundantly clear in the confirmation email to spare their customers some (very warranted) consternation. From another thread on the same promotion, I can see that most if not all people got their gift card eventually, so this website is legit, but probably has some issues around processing times and communication.