Benefits or expenses are within this section if—
(a)they are benefits provided or expenses incurred with a view to the acquisition of an interest in a residence,
(b)the interest is not acquired—
(i)because of circumstances outside the control of the person seeking to acquire it, or
(ii)because that person reasonably declines to proceed, and
(c)the benefits or expenses would have fallen within section 277 if the interest had been acquired.