Points not being Debited
Hello,
In April, booked/flew a Y ticket AKL-SYD and upgraded to J using Skywards points.
Not having thought about it, recently checked my account, and saw that not only the points had not been debited from my account, but I gained J points for the AKL-SYD flight.
Is this the norm, and will they be debited later on, or did I get lucky?