1. When I tried checking out directly on your page, I couldn't use my credit card, because your fraud detection system refused my card, though it is my card.
So I checked out using my amazon account.
It seems that your system has some problems.
2. When checking out, I couldn't have my shipping address other than the billing address. I think it should be possible to designate shipping address other than the billing address.
(e.g. to ship to my delivery agent(www.malltail.com))