A Right of Audience is a reserved legal activity for the purposes of the Legal Services Act 2007. You cannot appear for a claimant (in the absence of the claimant) unless you have RoA as defined by para 352 of that Act. This paragraph says: 352. Meaning of 'reserved legal activity'. 'Reserved legal activity' means: (1) the exercise of a right of audience; (2) the conduct of litigation; (3) reserved instrument activities; (4) probate activities; (5) notarial activities; (6) the administration of oaths. To do so is a criminal offence.