13 Withdrawal of appeal
1 The appellant may at any time withdraw his appeal by sending to the Tribunal a notice of withdrawal signed by him or on his behalf, and the proper officer shall send a copy of that notice to–
(a) the relevant Minister,
(b) the Commissioner, and
(c) in the case of an appeal under section 28(6) of the Act, the respondent data controller.
2 A notice of withdrawal shall if sent by post in accordance with rule 30(1) below have effect on the date on which it is received for dispatch by the Post Office.
3 Where an appeal is withdrawn under this rule a fresh appeal may not be brought by the same appellant in relation to the same disputed certification except with the leave of the Tribunal.