I think he meant you are entitled to a service if you get to the bus stop on time, not run into the middle of the highway to stop the bus.
Please read the thread. I can't keep parroting the same info over and over.
As for the timetable, there isn't really one. The schedule goes along the lines of "every x minutes", like this.
https://tfl.gov.uk/bus/timetable/133?fromId=490001281B