This is a very commend request we as that you provide some type of documentation.Well, I will have no problem providing the documentation, but it is taking great restraint not to respond, "I common you on your excellent grasp of the English language." Of course, I know if I do so, the odds of me retrieving the records will diminish. (So instead of responding sarcastically, I'm posting this on my blog.)
So...two tips for today.
1) Universities maintain historical records of students, and you can find the contact information for the Office of Student Records (or equivalent) on the university website.
2) Do restrain yourself from responding sarcastically when a clerk makes a spelling or grammatical mistake. At least until after you have retrieved every last bit of information that you imagaine you will ever have to retrieve from that clerk. (Even then, it's not nice, as we all do make mistakes from time to time. )