To update or change your Date of Birth within the Must Have Documents from your Apple phone or other mobile device please follow the steps below:
Step 1: Log in and navigate to your Must Have Documents here
Step 2: Tap on Make Changes under You
Step 3: Tap on Make Changes under Basic Info
Step 4: Tap on the date shown in Date of Birth to open the calendar and update the selection
Step 5: Select the day first, (1st, 2nd, 3rd, etc.) before selecting the year or month
Step 6: To change the month or year, tap on the month and year at the top:
Step 7: Scroll through the months and years until you find the ones you need and tap Done to select
Step 7: Scroll to the bottom of the screen and tap Save & Continue to save your update