Well, Llywydd, can I thank Dr Lloyd for raising this concerning issue? I've seen, as it happens, the letter that he wrote on 7 September to Julie James, and I've asked Welsh Government officials to contact him direct, if he's happy for that to happen, just to find out a few more details of the cases that lie behind the letter, so we can pursue them properly. The information I have is that there is less discretion than in other areas of council tax liability in the law in relation to the sort of rebanding to which Dr Lloyd's letter refers. There is a free appeals process for anybody who feels that the system has not been fairly implemented, and that is to the valuation tribunal. But the points that the Member raises are concerning ones, and, with his permission, we'll pursue them in more detail with him directly, so that we can see whether there is anything we can do to assist.