In the US you can add an exact amount required. It is a button at the bottom right when it asks for an amount you want to add.Ooo, almost forgot about these since I keep putting them off while debating whether it was worth getting both (already played Ages on GBC though barely remember it) or just Seasons. Never bought anything on the eshop so does it charge me the exact cost or do I have to buy $5 increments like other systems (since they annoyingly charge tax)?