Article Continued BelowThe TTC has already billed Metrolinx for $4.2 million in lost revenue it says was caused by Presto malfunctions over a period of two years. The problem only hit Presto card readers on GO Transit and transit agencies in the 905 area. As a result of the glitch, the devices blocked cards when customers tapped them to pay their fare. Once the cards were blocked, they wouldn’t be accepted by any Presto readers, including those on the TTC. Four days later, one week after the problem began, roughly 29,000 cards had been deactivated, but 24,000 had been unblocked.

Source: thestar September 15, 2018 21:33 UTC