謝謝熱心的XBT, 真害怕USCIS再忙中出錯

We write the A # of 1st 485 in all forms (485, G325A). We also wrote wrote that we had filed I485 at TSC, with receipt date, A#. I don't think the mailroom staff looked at any forms before they assigned the 2nd # for us.
BTW, how will NSC and TSC combine these two 485 applications? Will they transfer the application package from one center to the other or they just do it through internal network?
Local IO said that we'd either close one case or leave it as is. He also insisted that it would not make the cases more complicate.
As always, thank you very much for your kind help.