15.—(1) A local authority may carry out a new determination where—
(a)it considers that there has been a change in the capital or income of A;
(b)it considers that there has been a change in the standard charge for the service (including a change resulting from a change in the level at which or degree to which care and support is provided);
(c)it has changed its policy about the exercise of the discretion to charge under section 59 of the Act;
(d)it considers that a mistake was made in the assessment of A’s capital or income or in making the determination; or
(e)A requests a new determination.
(2) Where a local authority makes a further determination of A’s ability to pay a charge in accordance with this regulation, it may not require the revised payment to be made until the date that a further statement is provided setting out the further charge and the earlier statement will continue to have effect until that date.