Mr. Nicholas Tarrant:

We have. As we outlined in our report, and as I mentioned, through our internal audit process, we have looked at the two models. One is the distribution use of system model, which we have outlined, and the second is the tariff model. Both models have been looked at in great detail as part of this. We brought this to the CRU's attention in, I think, August or September 2021. During the intervening period, there was very detailed engagement with the CRU's team and its consultants to go through the calculations in significant detail. As outlined in the CRU report, there were alternative methodologies looked for as well to confirm the amount of money that was in play. Mr. Burns will talk a little about the work the group internal audit did to cover it.