HR Administration: How Can I Stop Being Put in the Middle Between My Employee and His Ex?

An employee's ex-spouse calls me when she needs a new insurance card, forms, etc., for their child rather than contacting the insurance company or her ex. I'm tired of being put in the middle and feel this is something that should be handled between the two individuals. If she had a problem with an issue after contacting the insurance company, I would gladly help--but routine matters, I feel, should not involve me. What should I do? . . . (to read the remainder of this article, please log in below.)