Loss Shoes

i took a trip to Mthata on Thursday 29 April with my wife ,we got to Mthata on Friday 30 April in the morning just before 8 and my wife she forgot her shoes under the seat we were sitting on , we were the last to get off , after few minutes we went back in to the bus to check the shoes , we did not get the shoes , when we ask the lady by the name of Apiwe she said the last people got of with your shoes forgetting that we were the last to get off , when we explain to her that we were the last people to get off she said she can not take the seize 7 shoes cause shes wearing seize 3 , the question was how did she knows the shoe seize is 7 if not sees them . we sent a mail on Tuesday 04 May to eldo coaches about this matter they never came back to me . can someone help me on this matter.