Is it ok to tell my daycare not to forcefeed my son, he hates being bottlefed and has never been broken of it.?

They showed me how they were attempting to feed him with a bottle, which he hates bottles and always has, and he started to scream and we didnt like it. He does good with a sippy cup sometimes, but he has always had this problem. He is fed, and it is quite common that they refuse bottles. Is it ok that we told them not to do that anymore? I figured we pay them about $700 a month to watch him, and we didnt ask them much, just dont do it if he is not cooperation or screaming. I dont want them to let us go, we already had one daycare provider do that to us before.