Pursuant to Rule 30(e) of the North Carolina Rules of Civil Procedure, a deponent can make substantive changes to her deposition transcript during the thirty day review period, so long as the deponent signs "a statement reciting such changes and the reasons given . . . for making them." The deponent will, however, be subject to cross-examination on the original answers, which may be used for impeachment or any other relevant purpose.
If a deponent wants an extension of the thirty day period allowed by Rule 30(e) of the Rules to read and sign a deposition, that extension must come from the Court, not from the court reporter.