I’ve marked as best sellers when I add a product
Could you, please, tell me where you marked that? Because WooCommerce does not have the option to mark the product as a bestseller by default. Do you use any additional plugin for these purposes? Provide a screenshot of the option that you used.
By default, best seller products are top sold products on your site and you can’t control it because it’s based on sales.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.