(1) The appointed auction platform must refuse to grant admission to bid in its auctions, revoke or suspend any admission to bid already granted to any person who -

(a) is not or is no longer eligible to apply for admission to bid under regulation 16(1) or (2);

(b) does not or no longer meets the requirements of regulations 16, 17 or 18;

(c) is wilfully or repeatedly in breach of these Regulations, the terms and conditions of its admission to bid in the auctions conducted by the appointed auction platform or any other related instructions or agreements.