I wonder why there are no lawsuits from the companies that had to pay to unlock the trains and did not get any documentation what was fixed/replaced to get it r

I wonder why there are no lawsuits from the companies that had to pay to unlock the trains and did not get any documentation what was fixed/replaced to get it running (in 10min) especially that it was not a single train that had to be unlocked. It's like having ransomware on the plc.