My husband and I are permanente. We flew from Guadalajara to Seattle last week. Went to immigration first and got our form stamped. Went to the Volaris counter to get our boarding passes. Agent at the counter stapled both halves of our form to our boarding pass. Getting ready to go down ramp the gate agent took both halves of the form. We asked for our half of the form back he said we didn’t need it. Said we do things differently now. We suspect he is wrong. What do we do now when we fly back and go through Mexican immigration with that form?