The vendor that was working on changes to the IT system made a deployment error, which prematurely revealed the message about the new lock-in period to some users, says Senior Minister of State for Transport Amy Khor. SINGAPORE: It was a case of human error when the message about the new three-year lock-in period for cars designated for ride-hailing services was prematurely revealed, Senior Minister of State for Transport Amy Khor said on Monday (Mar 3). The IT system vendor NCS has since taken