In this Chapter -

"prescribed percentage" means 20%, 30% or 50%;

"proposed acquirer" means a person who proposes to acquire or increase a qualifying holding in a payment institution, and includes a group of persons acting in concert to acquire or increase such a holding;

"proposed acquisition" means - (a) the proposed acquisition of a qualifying holding in a payment institution, or (b) a proposed increase in a qualifying holding in such an institution that results in the size of the holding reaching or exceeding a prescribed percentage;