Does exist a way to prevent learner to cancel enrollment?

Summary:

Does exist a way to prevent learner to cancel enrollment to a course when system date is 2 days before course start date?

Content (required):

Does exist a way to prevent learner to cancel enrollment to a course when system date is 2 days before course start date?

Version (include the version you are using, if applicable):

23B

Code Snippet (add any code snippets that support your topic, if applicable):