Complex sentence: In June 2010 BA said that the policy was under review and in August 2010, it changed its policy and began seating unaccompanied minors in a nondiscriminatory manner near the cabin crew.
Split into simpler sentences: In June 2010 BA said that the policy was under review. In August 2010, it changed its policy and began seating unaccompanied minors in a nondiscriminatory manner near the cabin crew.