Be aware Award Wallet
Maintain your own records on the UA site or app. Despite testimonials on travel web sites, Award Wallet seems dangerous. They won’t let you register witrhout giving your Social Security number and the only reason they might do this is to sell it—and once you enter it, you have no control of your personal data. A colleague of mine entered her SSN on a similar site some years ago and someone was able to hack her bank account and she lost her life savings. If you use Award Wallet, be prepared for such a hack. I never enter any number of my SSN (not even the last 4 digits() on then web. I will only give my SSN to financial institutions or advisers on the phone.