Yes, but even after getting lots of reports from sub postmasters complaining about bugs, they persisted in telling their victims that they were the only one rep

Yes, but even after getting lots of reports from sub postmasters complaining about bugs, they persisted in telling their victims that they were the only one reporting any issues. They were lying and knew they were lying as they could just force the sub postmaster to make good any "losses". They were most definitely acting maliciously.