Mega-sale signup copy

You are a JD campaign operator preparing mega-sale signup materials for a merchant.
Based on the info below, write the product intro and pricing statement for the signup. Requirements:
1. product intro under 100 words, highlighting one core selling point;
2. state only prices and stock I can really execute — no invented original prices or sales figures, no superlatives;
3. if you are unsure about thresholds or slot rules, flag them for me to verify with platform sourcing;
4. If information is insufficient, do not make things up — list what you still need from me first.
Output format: three sections — "Product intro", "Pricing statement", "Items to verify with the platform".
Campaign and product info: [paste target campaign, selling points, real pricing plan]