book on the spot ok. if advance booking, high chance they will cancel, especially early morning booking. early morning, or peak time, normally need to add tips to attract drivers. one tip i heard from grab/airasia ride, if u choose cash payment option, the chances to get ride higher as compared to using credit card/debit card. never tested, but early morning search using cc very hard to get.

Trust me la..EVP needs to be settled by respective ehailing companies with their own money. And they don’t give out EVP to part timers. Ask your superior la if you’re working for any of them besides grab.