If a user orders two courses within one order, the two courses have the same transaction Id. This leads to the the fact, that you can’t refund a part of the transaction. If a user orders two courses, one is happening and the other one isn’t, we are not able to do a refund on only this course but the system forces us to do the refund on both courses using the same transaction id.
It would be nice to be able to do partial refund or that the transaction Ids are provided per course and not per order.