We will not arrive until late our first night and will not be using our QS meals the first day. We will have some extra QS credits. From what I understand, we can get three snacks for one QS credit. Does this mean we can get three coffees (at one time) from Starbucks? I just want to make sure I understand breaking them down. Also, if we do this, is there a mobile ordering option for that? Thanks in advance!