Never use Grab for airport drop off
Never, never, never use Grab advance booking for an important journey. We had a perfectly easy time with Grab throughout our trip so figured we would use for airport drop off as well. We booked TWO DAYS IN ADVANCE and then received a cancellation at the time of our booking (15 mins after, in fact since it only confirmed no driver 15 mins after the requested time). There is no customer service availability, no re-booking, nothing. We have to rely on kindness of strangers to make our flight on time.