Get some pics up it makes it easier to help
If it is the big bolt that runs through the hoof and the spring bracket take the other one out and go to a good hardwear store (if that is all that is missing )
I can't see how you could do much damage to them just walking but if you were jumping without the bolt in you might have bent the hoof or the spring bracket
The good news is the hoof is only £15 and the bracket is very cheep (not sure exactly how much)
As for the warranty if the bolt had sheared and you had both bits you might get somewhere but if it just came undone I don't think you will because the manual does say check all nuts regularly (that means every time out even though most of us don't)
Ok just seen the pics and I would get a new bolt and replace it (make sure it's the same grade and size as the one from the other hoof) and a new locknut or have a look for the old one it can't be too far away you would have noticed it
The damage to the hoof dosen't look to bad but the pic is very blured but if it looks the same as the other one and not to badly bent you should be ok
Hope this helps
Jason
