When these rules specify that a party is to file or serve an ancillary or supplementary action in the magisterial district court which rendered a judgment or issued other process, but that court no longer exists or its magisterial district boundaries have been changed, the party may file or serve the ancillary or supplementary action only in the magisterial district court in which the original record of the proceedings containing the judgment is filed.
246 Pa. Code r. 211