Kim,
I very much doubt that any damage has been done to your business, in fact quite the opposite.
Every company will have some problems during trading, it isn't the problem that people are looking for but the resolution.
I think that you will find that as the problem has been resolved to both parties satisfaction that this increases the possibility of more trade, not less.
You have shown that you do care about customer relations (although in an over zealous way) so you have confirmed to the readers that you are a reasonable company to deal with.
Bob