Our case is finally approved after 31 months' waiting. I received the stamping notice last week. But it mentioned bring I-94 card to local office. My wife didn't get an I-94 card when she used advance parole last time to enter the custom. Do you think I-94 is definitely needed? I called USCIS, their people said it is not, but you know their word is second to bullshit, I am not sure what to trust. Any opinion is welcome!