是否有适合这种商业模式的支付网关？
我正在开发一个网站，该网站允许人们列出待售商品，但在商品售出之前他们不必支付列表费用。我查看了 Paypal 和 Amazon API，但没有找到一种方法来授权未经验证的金额付款，并在可能更晚的日期（几个月后）收费。 Paypal允许授权，稍后抓取，但最终金额不能超过授权金额的15%。我的问题是金额不为人知。 Paypal 也只允许您最多延迟 29 天收费。提前致谢。
I'm working on a site that allows people to list items for sale, but they don't have to pay for the listing until the item sells. I've looked through the Paypal and Amazon API, but don't see a way to authorize a payment for an unverified amount, and charge at what could be a much later date (months later). Paypal allows for authorization, to capture later, but the final amount cannot be more than 15% of the authorization amount. My problem is that the amount will not be known. Paypal also only allows you to delay charging for up to 29 days. Thanks in advance.
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如果付款未完成，所有信用卡授权将在约 30 天后过期。因此，您必须选择符合 PCI 标准的远程信用卡存储提供商，例如 Authorize.net
您也可以只存储用户的 Paypal 帐户，并在销售时向其发送帐单。
All credit card authorizations expire after ~30 days if the payment isn't completed. So you'll have to go with a PCI compliant remote credit card storage provider, for example, Authorize.net
You could also just store the user's Paypal account, and send a bill to it when it sells.
也许最好的方法是预先收费，但如果 X 周后还没有售出，可以退款吗？
Perhaps the best way to do this is to charge up front, but refund if it hasn't sold after X weeks?