Come on be creative...
Call the dealer or shop where it was serviced from the carfax. Or drive there even better if you can.
I bought this car, serviced at your place, I want service done, but don't want to duplicate stuff that was done 2 months ago, can you tell me what was done and what needs to be done.
Something like that, I mean you're not asking for the former owners health records....
Don't be a Richard.