Sarah I often had problems with getting Matilda to take her bottle for a few days and then she would go back on it, but she would drink 50mls and then reject the rest....it was SOOO frustrating. Now when she rejects a bottle, thats it I don't fight it anymore, just offer it again in 15 minutes and if she refuses again I offer another one when the next one is due. Often she does it when she is weaning herself down a bottle, so from going from 4 bottles to 3 a day. HTH!