This is a company designated by USAA to update your auto policy data i.e., how many miles you have in your car right now, who are the drivers, etc. According to this information, USAA will adjust your policy. If you tell them that you drive 12000 miles per year and by May you already have 10000, they will assume their risk is larger because you will drive more miles; or if you added a driver and did not tell them, that will also increase your insurance policy. So tell the truth, do not provide identifiable information for any of family members, and you will be OK..
Safe call, USAA updating their records....again......just like they said they would when they mailed their letter stating just that. Friendly person on the other end