Theft at OR Tambo

I flew to O.R Tambo International airport on the 11th July 2019, with British Airways Flight number, BA6274. We arrived at 16h20. On arrival at my home I realised that my bag was searched and thus far I have determined that 3 perfumes were ******. Also, I remembered that whilst at the airport, our luggage took longer then usual, about 45 minutes, to arrive at carousel 1 and one of my bag's zipper was halfway open.

Please assist with this regard.