any update on this? i seriously hope u got your pay.
unless you're 'gaming' this ride, then even if the rider uses a stolen card or problematic card or whatever, it still shouldn't affect u.
it is for grab to settle it.

maybe it wasn't single rider. if there was like 4 rider, then its probably cheaper to grab altho will take forever...
or maybe it's an emergency case. my friend once paid RM800+ 1-way for an air ticket Subang airport to Alor star due to family emergency

i once picked up a middle eastern family of 4 from sunway to i-city. they ask me to take them to penang the next day. willing to pay RM550. unfortunately, i don't like them (the parents were loud, kids too noisy & jumping about in car) so i didn't. i told them they can book using the app instead...

i also once took a rider from TBS to somewhere is Melaka. RM250+toll cost to the rider. he said it was an emergency. he missed the bus and need to be in Melaka by 7pm.

You just never know.