I am dealing with this issue today. I gathered up my reminder emails so I was sure of the times the student was given a written warning.
I told the student I had not yet received the paper.
He said he would get it printed today or give it to me tomorrow.
I lwrote up a Success Plan noting the ways the student was told of the assignment. Five percent will be deducted each late day.
I will ask the student to go over the plan with me today.