Dear RLW,
Thank you for your question. I am using your initials in the saluation because this is a public forum, and I wish to respect your privacy.
You need to find out which certification board was used by your school. Then contact the board to get a copy of the result. You can expect to pay a fee to get a copy.
I am surprised that your school can not help you to get a copy.
here is the source for finding out the board used by your school.
http://www.qca.org.uk/aboutQCA.aspx
C&onsultant
Master's Degree candidate waiting on research paper; BS Uni S. Colorado, summa cum laude; AA Degree