Tom Margenau answers more of your Social Security questions in the latest edition of his column, Social Security and You:

Q: I am a certified public accountant. One of my clients, who signed up for his Social Security about a year ago, just got a letter from Social Security’s “Office of Quality Assurance.” The people there want to redo his claim for benefits. And they are asking him to bring in his military discharge papers (he was in the Army 40 years ago), his W-2 records for the past 10 years and other documents. What’s going on? He’s very worried about this.

A: Tell your client to relax. This really is a “no big deal” kind of thing — from his perspective, anyway. But it is a big deal to the Social Security Administration.

The SSA’s Office of Quality Assurance takes a small sampling of Social Security cases and redevelops them. It’s not really to see whether he’s being paid correctly, although they will check into that. But your client shouldn’t worry about this, because historically, Social Security benefit calculations have a very high degree of accuracy. Statistics show that people, in part because of these kinds of reviews, are getting the correct benefit amount about 99 percent of the time.