In big companies there are often things like this, if you have 5K people working in finance or procurement and 1 in 100.. and you run it for 10 years... well you can see where this goes with the tail cases. Things like the person handling the case has a break down, or someone didn't put a transaction lock in the workflow, or two accounts got set up because there was a delay and someone helpfully restarted the set up process.
Not much, i'm afraid - i can't even remember who it was, it was a tale told in a pub, i think. They'd done some work for Tesco, sent an invoice, Tesco messed them around trying not to pay it, so they brought a case in court, Tesco didn't bother sending anyone to contest it, and this person got the winding-up order. When that is issued, official letters go to the directors, and apparently that got their attention.
I've twice been involved in sending winding-up orders, or at least sending a letter before action to say that a winding-up order comes next. They're an effective and cheap tool in the U.K. to shake dishonest companies looking to avoid/delay paying their bills.