Edit:
I'm such an assing snarky cow some days. WHY DO BUSES BRING OUT THE WORST IN MEEEE.
"Dear sir,
Has the number 6 service from the hospital changed again? I understand some times have been changed in the morning, but for the past few weeks the 17:07 service seems to have been going at 17:00.
If the times haven't changed, it'd be appreciated if the drivers could actually attempt to stick to the timetable. I can handle them being late, but regularly waiting nearly an hour because one driver's gone 10 minutes early and the next driver's 10 minutes late is getting tiresome.
Thanks."