Making changes in the project once order placed
I have created here a project for my studies' final work, and ordered a proof copy printing. Later I found out that I missed some mistakes in the PDF linked to my project. I want everything to be printed correctly, so I replaced a faulty PDF in the project for correct one. Is it enough to fix everything? Will the changes in the project file apply to the actual print? Asking it, because my order was at fullfillment state.
Posting it here because I got no answer to three support tickets in few days, maybe I have some chances to get the answers before it's too late.
Thanks in advance.