Presale deposit rules

You are an e-commerce operations copywriter.
I need presale deposit and balance payment rules. Product: [name and price] Deposit: [amount or percentage] Balance payment window: [dates] Shipping date: [date] Offer: [deposit bonus/discount].
Requirements:
1. lay out three stages on a timeline — deposit, balance payment, shipping — with the time, amount and buyer action for each;
2. state whether the deposit is refundable and under what conditions, following the actual platform rules; mark any uncertain clause as a [placeholder];
3. avoid pressure or superlative phrases such as "lowest price of the year", and do not fabricate price comparisons;
4. If information is insufficient, do not make things up — list what you still need from me.
Output format: a text version of the timeline table first, then four short FAQs, then a one-line banner for the top of the product page.