Re: Right... but there's more to it than just the managers
If that sounds glib, the NatWest one affected me: I did a couple of minor transfers betwixt accounts and found whilst the source accounts were debited, the receiving accounts were not credited. After some checks and refreshes I just closed the tab and did other stuff for 6 hours without worrying, then logging back it, found it was all serene.
How many digits would you have had needed to have been worried? That could have been a transfer to buy a car or a house...