I canceled a golf time because of cold weather and wind and rescheduled at same course 2 days later. System canceled and then rebooked the same time instead of 2 days later. GN customer service is now making me prove I did not play. I have been with GN for 5 years and the customer service has always been terrible. The first customer service girl admitted there is a problem with their system. This is not about the $ it's the principle. GN needs to fix their on line booking system and improve customer service.