Darganfod a oes hawl i gael disgownt a swm y disgownt hwnnw
4. Yn lle rheoliad 14 rhodder—
“14. Before making any calculation for the purposes of Part V of these Regulations of the chargeable amount in respect of any dwelling in its area, a billing authority shall take reasonable steps to ascertain whether that amount is subject to a discount, and if so, the amount of that discount.”