Hi,Silent_Bobina.
I have the same problem with one school. They lost one set of my transcript so I contacted the department secretary and learned that all the materials were submitted to the department where they photocopied these materials for review and then the dept sent the original to the graduate school admission office.
Therefore, I asked the department secretary to help me check with the graduate school and the GS finally discovered the transcript and updated my application status. What I learned from this case is that you need to be clear about how they process your application and pinpoint who is responsible for the mistake.
As for GRE score, it is much quicker to explain your situation to ETS while ask the GS if you can submit a photocopied report instead.
Good luck to you!