A legal practitioner who represents a party in a trial or lower court proceeding has not necessarily been engaged to represent that party in an appeal or review to a higher court. Each new case with its own case number, notwithstanding that it originates from another case, should be served directly on the litigant, who in turn must specifically retain the legal practitioner's services for the new matter. In the absence of a general power of attorney, a legal practitioner does not automatically represent a litigant in all or every matter relating to that litigant. Service of review proceedings on a party's former legal practitioners, without evidence of their engagement for the new matter, does not constitute proper service.