[identity profile] drdoug.livejournal.com 2011-07-13 04:48 pm (UTC)(link)
Thankfully there are check digits, so most mistakes should be caught.

Really? I've heard many tales of payments gone astray with mistranscriptions. Apparently if the unintended recipient, and/or their bank, isn't very helpful, it can be very, very hard to resolve.

Until I read your comment, I was pretty sure that account numbers and sort codes don't have check digits, and that the lack (and consequent problems for users) were part of the rationale for developing IBANs, which do have check digits. But IBANs are not (yet) widely used for customer electronic transactions within the UK, SFAIK.