February 28, 2017, 06:05 PM 
According to the GrabHitch Etiquette guide, passengers hitching a ride are not obliged to pay for ERP charges en route to their destination.
The guide wrote that GrabHitch drivers are to absorb the cost of ERP charges:
6. Do not charge for ERP gantries.
GrabHitch is a social carpooling app which is supposed to defray your daily commuting cost. You would already be paying for this with or without your GrabHitch buddies during your trip. There should be no extra charges to the passenger.
It is no wonder this GrabHitch passenger is miffed:
She was told to pay for the ERP charges in cash by the GrabHitch driver.
To clarify matters, she even contacted Grab customer support and was told in no uncertain terms she did not have to fork out a cent.
She was subsequently told to alight from the GrabHitch vehicle after the expressway when she refused to pay the driver for the ERP charges in cash.
Disputes over whether passengers are obliged to pay ERP charges have been ongoing for a while.
Back in September 2016, a tweet showed a string of messages between a driver and passenger debating who should or can pick up the tab:
Just had my first hiccup with @GrabSG on GrabHitch. Wonder if this is a thing. pic.twitter.com/ItsN1jKNdz
— Han (@WimpyLion) September 15, 2016
Grey messages are the driver, green messages are the passenger:
To be clear, GrabHitch is touted as a social platform for non-commercial purposes:
GrabHitch is a social ride-sharing initiative launched by Grab to match journeys between private car drivers and commuters heading the same way at the same time. Drivers choose to share their rides with passengers and get paid a basic fare that covers their petrol costs, while passengers enjoy a socially interactive ride that is 20-40% cheaper than alternative private transport options.
In other words, this function is to solve transport woes, not create more problems.
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