The requirements say the type (Gold, Platinum, etc.) is an attribute of the Card. Mr. Product Owner, are you sure it's not an attribute of the Account? Just checking.

Either way, I'm not seeing Type implemented in sprint 1 (the second article). Is that intentional? If so, it might be helpful if we could see the overall list of product backlog items to know what's coming up in future sprints, even if we don't yet know what sprint they'll be in. Know what I mean?