I feel that it is well past time that people need to name names, we should be looking out for each other, not worrying about being PC and holding our tongues, as to the legal,issues the best defense for libel and slander is the well documented truth.
While this so called breeder probably has no legal obligation to make it right with you, morally and ethically he certainly does, particularly if he is such a"great helper of the Youth"
If you do nothing else in this matter, here is a suggestion that I used a few years back on a heifer I bought that turned out to be a breeding problem and the breeder that sold the heifer basically laughed at me when I notified him for some solution. I just watched consignment sales for this man to have cattle listed and then called the sale manager to let him know that I had a problem with this man in the past regarding living up to breed association rules regarding breeding. All of the sale managers were thankful for the info, to avoid surprizes later. He hasn't had any cattle in sales now for the last 2 yrs, coinsidence?? maybe, maybe not
Good luck