34.—(1) For each lot type separately, OFCOM shall identify the bidders that fall into one of the following three categories such that—
(a)the first category contains the bidders (if any) (“category one bidders”) which made valid principal stage bids for a lot of that type at the round price of the most recent round (whether made in the most recent round or in an earlier round);
(b)the second category contains the bidders (if any) (“category two bidders”) which made valid principal stage bids for lots of that type in the latest round in which the bidder submitted bids for lots of that type satisfying the following conditions—
(i)the bids were made at a round price which was lower than the round price of the most recent round; and
(ii)all of the bids were assigned standing high bid status by OFCOM after the end of the previous round;
(c)the third category contains the only bidder (if any) (“category three bidder”) which made valid principal stage bids for lots of that type in the latest round in which the bidder submitted bids for lots of that type satisfying the following conditions—
(i)the bids were made at a round price which was lower than the round price of the most recent round;
(ii)some but not all of the bids were assigned standing high bid status by OFCOM after the end of the previous round; and
(iii)the standing high bid status of the bids was not withdrawn by the bidder in the most recent round in accordance with regulation 47.
(2) For each lot type separately, OFCOM shall rank the bidders on a list (“bidder ranking list”) so that—
(a)category one bidders appear above category two bidders and above any category three bidder;
(b)category two bidders appear above any category three bidder; and
(c)within each category, bidders are ranked in a random order.