On 20/05/2013,
you requested for the version in force on 20/05/2013
incorporating all amendments published on or before 20/05/2013.
The closest version currently available is that of 02/01/2011.
13. When the Comptroller is satisfied that the whole of the net proceeds of an entertainment have been devoted to charitable or philanthropic purposes, and that the whole of the expenses of the entertainment do not exceed 20% of the total takings of the entertainment he shall repay to the proprietor the amount of the entertainments duty paid in respect of the entertainment.