I can confirm that this website operator is a scam artist who will take your Bitcoin and run. I lost $800 dollars due to this website operator. I reported this website to FCC and FBI. If you're reading this DO NOT send this FakeDiplomaPrinting.com /gmail any money. Website is hosted out of ICELAND FYI with IP of 18.104.22.168
Once payment is made you will only get the following response:
"Hi, I will reply shortly with a update.
If you have any questions, please feel free to ask."
Now I know why this website does not accept payments that can be disputed if no product is sent.