I have a bad experience with few grab Car drivers, most of them like do not know how to use GPS at all, i once booked a car the driver said he already arrived but he was in another location and dare to say he follow the map?

Another one is drivers asking us to cancel giving alot of lame excuses saying car breakdown or I'm too far away, or just cancel my booking without any warning after accepted it

If they asked me to cancel i will just put the reason the driver gave me, the driver would get bad AR instead?