Scenario split

One bundled case, three outcomes

One bundled case

Apply code, pay, verify order

Apply SAVE10 to $100Total shows $90Case 1
Pay for the orderPayment confirmedCase 2 · if required
Open the saved orderStored amount is $90Case 3 · if required
Tax before or after discount?Undecided in the requirementAsk the owner

One bundled case hides three outcomes. Split, each case proves one, and the open tax rule goes back as a question.