84.—(1) The Authority may at any time revoke a sanction imposed in accordance with regulations 78 to 83 if it is satisfied that—
(a)there was an error involved in the original imposition of the sanction; or
(b)it is just and equitable in the particular circumstances of the case to do so.
(2) Within 21 days of a decision to revoke a sanction, the Authority must send a notice to the participant specifying—
(a)the sanction which has been revoked;
(b)the reason for the revocation;
(c)what action if any the Authority proposes to take in relation to any loss incurred by the participant as a result of the imposition of the sanction including the time within which any action will be taken; and
(d)details of someone within the Authority whom the participant may contact if they are not satisfied with the proposals made by the Authority under sub-paragraph (c).