Sometimes the taxi drivers collaborate with the bus drivers. It can happen that your bus just stops in the middle of the way and the driver insist that he can’t go further and tells you to take the taxi. It happened to my friend, the bus driver wanted him out to take the taxi he was a friend of, yet my friend was lucky to have a Chinese friend with him who argued with the bus driver and insisted on continuing the trip. The driver may be very persistent, but you must refuse to leave the bus, so he will take you further. Always demand what you paid for!