Yes I've had this argument on other forums. Depending on which service you have set yours should be 10,000 miles or 1 year which ever comes first. Why does it show 9500 miles its a computer can't it do subraction? The same goes for the days.
I had mine serviced a couple of months ago and I didn't check the next serice info on the MFD for a couple of day. I check it and it said 9300 miles or 379 days. When I went to school there were 356 days in a year.
You would be better of having the service and reporting back whether they did it correctly.
I've read problems after a service that the service info doesn't show until you done a few hundred miles but its only guys in the US that complain of this.
http://www.golfmk6.com/forums/showthread.php?t=15649