<prompt> Human: An old company sent me this letter I removed the names and exact numbers, saying that they matched my 401k in my final year of employment 2008, but that their policy is not to match if you dont end the year with them. They now want the matched funds back, plus interest.I have no idea if that was their policy back then, though I have no reason to doubt it.What are my options here? Do I just have to pay it, interest in all?Thank you.  <response>: Send them a bag of sand with instructions on how to pound it. 