BRITISH Can I cancel and get a refund with British Airways?

If you have booked directly with British Airways and {{𝟏𝟖6⃣6⃣𝟳𝟯𝟴𝟬𝟲𝟮𝟮 (USA) 𝐎𝐑 +44 𝟴𝟬𝟬𝟬𝟱𝟭𝟲𝟳𝟯𝟱(UK) })you notice a mistake with your booking after you have paid for your ticket(s), you can cancel your flight booking and claim a full refund without penalty, up to 24 hours from when you make the {{𝟏𝟖6⃣6⃣𝟳𝟯𝟴𝟬𝟲𝟮𝟮 (USA) 𝐎𝐑 +44 𝟴𝟬𝟬𝟬𝟱𝟭𝟲𝟳𝟯𝟱(UK) })original booking.