u/Echo_Pursuit

I accidentally picked the wrong card on my submission list. I got a Submission Kit, which has already arrived, so I'm unable to edit the list now. I've been in contact with Support but they just keep passing me around instead of just changing the one card. Do I just submit my cards with the correction marked up on the packing list or try to get it fixed first? Will it get caught during grading or would my card be mislabeled?