HO CHI MINH CITY/BANGKOK: As a heatwave engulfed northern and central Vietnam earlier this month, customers reaching for their phones to order food or a ride on the Grab app learned they would have to pay a surcharge.
The extra fee, applied when the local temperature hits 35 degrees Celsius (95 degrees Fahrenheit), came months after the Southeast Asian platform company introduced a rainy-weather fee in Vietnam.
