Article 19 Substituted service
If any person to whom any document is required to be sent or delivered for the purpose of these Rules cannot be found or has died and has no known personal representative, or is out of the United Kingdom, or if for any other reason service on him cannot be readily effected, the Pensions Ombudsman may dispense with service on such person or may make an order for substituted service on such other person in such other form (whether by advertisement in a newspaper or otherwise) as is reasonable.