Any application for an order under section 89 or a decision under subsection (2)(b) or (3) of that section must be made in the prescribed manner and within any prescribed period.
No application may be made under section 89(1) in respect of an adoption unless immediately before the application is made—
the person adopted, or
the adopters or adopter,
habitually reside in England and Wales.
In deciding in pursuance of section 89 whether such an authority as is mentioned in section 91 was competent to entertain a particular case, a court is bound by any finding of fact made by the authority and stated by the authority to be so made for the purpose of determining whether the authority was competent to entertain the case.