What is the 24 hour rule for British Airways?

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２４ ｈｏｕｒ 𝐁𝐫𝐢𝐭𝐢𝐬𝐡 𝘼𝙞𝙧, 𝙬𝙖𝙮 offers a 24-hour risk-free cancellation policy. You can cancel any flight at (+ 1) <> {877)=693 4977)) within 24 hours of booking for a full refund, as long as the flight was booked at least 7 days before departure at (+ 1) <>- {877)=693 4977)).
http://support.google.com/business/thread/326851352/𝘞𝘩𝘢𝘵　𝘪𝘴　𝘵𝘩𝘦　𝘤𝘢𝘯𝘤𝘦𝘭𝘭𝘢𝘵𝘪𝘰𝘯　𝘳𝘢𝘵𝘦　𝘧𝘰𝘳　𝘈𝘕𝘈　𝘧𝘭𝘪𝘨𝘩𝘵𝘴？
http://support.google.com/business/thread/326851784/𝘞𝘩𝘢𝘵　𝘪𝘴　𝘵𝘩𝘦　𝘤𝘢𝘯𝘤𝘦𝘭𝘭𝘢𝘵𝘪𝘰𝘯　𝘳𝘢𝘵𝘦　𝘧𝘰𝘳　𝘈𝘕𝘈　𝘧𝘭𝘪𝘨𝘩𝘵𝘴？
http://support.google.com/business/thread/326852726?hl=en&sjid=12432278194183479582-EU