This section applies where the regulator receives money by way of penalty.
The regulator may deduct a sum which represents—
the direct costs to the regulator of imposing and enforcing the penalty, and
a reasonable share of expenditure by the regulator which is indirectly referable to the imposition and enforcement of the penalty.
Any excess shall be paid to the HCA, to be used for purposes which appear to it to amount to investment in social housing.