karns,
i just moved last month , used online address change only, did not see any LUD's
related to address change, but my new approved EAD came to my new address.
i guess you are OK if you dont see the LUD/ or dont get a mail confirmation,
if you want to be double sure call the toll free number. i didnt use this one ....
Anyone tried to update the address online? I made an online address change yesterday but havent seen and LUD for that