University degrees generally do not include country of birth, or citizenship. Your personal info such as name, birthdate & place, Social Security Number or your country's identification number, etc, is generally included in university records & recorded on the transcript, not the diploma. One has to wonder which "university" you claim to have graduated from.
However, if there is any error, e.g. misspelling, on university records, transcript, diploma/degree, etc., you must have them correct the document & replace it.