Rates of pay difficult or complex ??? Then why has no worker been accidentally overpaid?
Upvote because you beat me to it.
Banks are the same. They claim mistakes are bound to happen from time to time - which is true of course - but never explain why mistakes in their favour far outweigh mistakes in the customers'.
We all know but it might be refreshing if they occasionally fessed up that they're way more focused on the upper management's remuneration than the customers' interests - or even the shareholders'. ("USR shitting on the little guy".)