Hello, there is an option for automatic refunds for a product, however it is for fixed periods of time (e.g., 30 days after purchase) instead of fixed dates (e.g., until a specific date). Is it possible to add expiration dates for when automatic refund periods end? Additionally, we have different policies for courses. For instance, refunds less than 2 weeks before the start date are subject to a cancellation fee. Is it possible for automatic refunds to be tailored to specifics dates and percentages? In summary it would be great to have this as an option: 100% refund from [date] to [date] 50% refund from [date] to [date] 25%.... and so on