This was all about the Sun Country cancellation policy. If you find anything regarding this policy confusing then you can go to the official website of the airline and read about everything in detail. Alternatively you also have the option to get in touch with the customer support team of the airline to avail their assistance regarding anything. You can talk to them and get all your doubts cleared or if you are facing any problem while cancelling the flight then you can get in touch with them and let them know about the problem you are facing. The customer support team member will look into the matter and will resolve it for you as soon as possible.
https://www.travelbuny.com/blog/sun-country-cancellation-policy/