NO HYGIENE IN THE SCHOOL

Yesterday gone to fetch my child at the pre-school, i check if everything is in the bag that i send with him everyday don't see his bottle asked for it got a reply sorry we don't know told them please look for it after i received a bad attitude from them they looked for it found it in the dustbin rinsed it with water cold water then just want to give it back to my child , i took it and said i will clean it properly at home