I'd be inclined to agree with previous sentiments that such minor matters should be chalked up to experience. Many large companies would not make a goodwill gesture on the basis that it might be seen as an admission of liability.
The only doubt that I would have is that you should wait a certain period of time to ensure that your injury was just a minor one and is resolved. In personal injury actions medical advice would tend to be to wait a while to ensure that there are no nasty surprises lurking and that in a few months time you don't find this injury playing up. That said, if you were going to make a claim there are very strict statutory limits on such claims now, so talk either to PIAB or your solicitor in relation to same.
I would also have my doubts on the wisdom and possibility of receiving ( free or otherwise) legal advice over the phone, but each to their own.