Certificates submission for enrollment

I’m in the process of preparing my papers to be sent to FAU office by post. I got an acceptance at the IIS program

I will be sending both Bachelor Transcript and Bachelor Certificate that are authorized by the Egyptian Ministry of Higher Education, Egyptian Ministry of Foreign Affairs, as well as the German Embassy in Cairo. Both the transcript and the bachelor are original copies of my documents that are received from the university as per to my request

In addition, I will be sending my original American High School diploma, authorized from the AmidEast, Ministry of Foreign Affairs, and the German Embassy in Cairo

My question is that, as both my transcript and bachelor degrees are considered to be copies generated from the University, will there be a problem sending the original American Diploma? Reason behind not being able to get a copy of it is that I graduated high school 7 years ago, and getting a copy wasn’t a feasible option for me