Thats a possibility but also it would be slightly inconsistent on our part as we did report the error to them at the beginning as we were legally obliged to do. So they might still have records of it or might have only just got round to chasing it up.
PMKeates, is correct, there was virtually no risk, only just losing interest and he did contact the bank (In person), they can do what they like with their money, he's wasn't gonna waste his time trying to give it them back if they don't want it
Just curious though if any financial wiz's can answer this but, what period of time would the money have to be with us before we could have rights to it? I'm not sure if 5 years was correct, no one really told me. I'd really like to know if we were close, or if its something ridiculous like 20 years.