Live goods estimates and a +10% automatic-collection rule are planned concepts, not currently available product guarantees.
In the current ordinary flow, an operator reviews the moderated order, confirms the USD goods amount, and presents a secure Pay-now checkout. If the amount changes before purchase, K-Shippify requires a new customer action instead of silently charging the difference.
A saved card can be used for goods only when an existing, scoped authorization covers the exact category and trigger. A displayed or discussed amount does not create that authorization by itself.