Thanks for your patience.
1. Yes, it works this way by default.
2. You can charge experts for adding/featuring services, for claiming services (if you post them on the company/expert behalf), or charge a commission on each service/request payment. So there are 3 ways to monetize your site.
3. It’s possible with a simple fix or if you disable the Marketplace extension.
4. Yes, there’s a 30-day refund window. Please note that once the refund is processed the license key is blocked (there will be no updates/support in this case).
Please let me know if you have any other pre-purchase questions.