iv been playing for 5 days and my score is 598,0912,864
Either your opponent hits the shuttle outside the court, or the shuttle hits the floor on your opponents side of the court.
It is not possible to get 865 credit score. Watch this video http://www.upcreditscore.info/2011/02/who-has-850-credit-score-by-steve-ely.html
A score is 20 years. Four score is 80 years. Thank Abe Lincoln for bringing this wonderful term to us in a way that it keeps "hanging on" through generations that might have forgotten other old units...
no ask your teacher it and she/ he will calculate it and tell you.