20.—(1) Where a person uses electronic communications to transmit any statement, notice or other document for any purpose of these Rules which is capable of being carried out electronically that person shall be taken to have agreed to the use of such communications and that his or her address for that purpose is the address incorporated into, or otherwise logically associated with the notice or document.
(2) Where a person is no longer willing to accept the use of electronic communications for any purpose of these Rules which is capable of being effected electronically, that person shall give notice in writing—
(a)withdrawing any address notified to the inspector or planning appeals commission or to the Department for that purpose, or
(b)revoking any agreement entered into with the inspector or planning appeals commission or with the Department for that purpose
and such withdrawal or revocation shall be final and shall take effect on a date specified by the person in the notice but not less than seven days after the date on which the notice is given.