There were some issues recently where people were billed several times higher than normal bills out of nowhere. It was a false flag though since apparently the metering system under billed them for months and the higher bill was to catch up. The story died pretty quickly after it turned out the bills were legit. That said, the company should have worked with the people since they couldn't really be expected to pay ~$10k when the normal bill is a couple hundred IMO.
It sounds like this story is a little different in that somehow the smart meter was either recording incorrect usage or transmitting the wrong numbers. If it's the latter, this is the same issue I heard about and will likely result in a short story run.