Does having a relative in the Schengen States help with your application?…
What can you do if you can’t attend a summer course in Europe because your Visa got rejected?
If you were planning to attend a summer course in your favorite field in any country in Europe but unfortunately your Schengen visa gets denied, that is okay!
If you miss the deadline of the course, there will always be other courses being held next year, maybe in a more beautiful European country.