I've lost a payment in a similar fashion before. The accounts team took the written paperwork and misinterpreted a 6 for a 0 (I didn't write the form) and it just happened to be a valid destination account number. It took me 2 weeks to get the payment back.

Doesn't always come down to technology.

In fact, when it comes to technology it's usually pretty good. Humans on the other hand always err on the side of incompetence as there's usually someone else to blame...

If you do not believe this about humans, work in or for the public sector in the UK for a bit!