Request a review

As I love the theme and use it to build my business on, this would be a neat feature to have: Set an automated email (or is there any link available that I could do it through Mailchimp or something) after a several weeks / days after someone started a course to request a review (and potentialy give a discount / offer if he adds a review). So basically, the possibility to request a review from a student would be an awesome feature :) (Or, if it is a feature that is available but I haven't found it yet, please let me know where to find it!) THanks!