You can apply for a new US passport or passport renewal and a US passport card at the same time. This is a convenient option for frequent travelers to have both a valid passport for air travel and a passport card for travel to these destinations by land or sea.
As for when you should use a Seal... use Master Seals on non-promoted classes at level 10 to upgrade them, and Second Seals on non-promoted classes at 10 to switch them over to another class tree (mostly worthless, though switching characters that have access to Mercenary, such as the Avatar, over to it ASAP is generally a good idea), or to switch a promoted class into another promoted class at level 15.
In Game of War:Fire Age, when reaching VIP level 10, you has the option of unlocking VIP Prestige by using. a Prestige Token which can be used in gold packs. You need to spend 10k gold for the prestige token. After unlocking VIP Prestige, you rebegin your VIP progress back at Prestige VIP level 1 which is worse than.