Computer issues happen, and when it's a human error, computer issues can still happen, if you know what I mean.
You never know, some people can be very understanding, they realise that things can go wrong, they shouldn't go wrong, but they do, it's the world we now live in with such a reliance on technology.
-Can you speak to them in person? it's more personal and there's less waiting around on your part, more immediate.
-If it's something that is going to inevitably get back to a manager at some stage, you might as well get that conversation over with straight away, saves on the stress, waiting around, and you never know they may have some advice on having seen this before.