Lab 6 · Under the hood: cards, points & miles

This is the core of the operating system: every swipe doesn't just cost money, it earns points or miles — and MilesVault's whole job is to capture every one. In this lab you'll record both sides of a purchase in one entry — by hand — and then see two different ways MilesVault draws the same entry for you automatically, plus meet the one voice in the app that never drafts anything at all.

You'll write:

• A four-posting purchase that captures the spend and the reward
• The pending → posted life of a point
• A forex purchase, with markup & GST
• Cashback vs a discount — why the same ₹50 is recorded two different ways

…and then see the identical shape drafted by the editor's chat, lifted automatically off a statement in your Inbox, and hear how the concierge fits in — and doesn't.