To view purchase history, log in to your online course by entering your email id or password. Here you can view Purchase History by clicking on it. You can view the details of every online course you've purchased in your purchase history. 

In the purchase history, you can see the Date (when the course was purchased), Course (which course was purchased and course name), Courses provider (means course provided in which medium, like-YouTube), Payment Type (here you can view only online payments), Payment Method (you can view the payment method details) and Price (In the price section you can view the discounted rate for the purchased course).