(1) A choice under section 715 - 95 or 715 - 120 must be made within 6 months after the leaving time, or within a further period allowed by the Commissioner.
(2) After that 6 months, or that further period, the head company is taken to have made the first choice under section 715 - 100 or 715 - 125 unless it is established that the head company made a different choice within that 6 months or further period.