I think there is a reason why Virginia Episcopal declined your daughter's application after the Vericant interview. The interview gives prospective schools a good idea the student's English ability and if they deem it to be lacking, it will definitely affect how well the student will perform academically after they are admitted. Regardless of which schools your daughter will apply to and be admitted, it will be wise to have your daughter devote more time to improve her English before she goes abroad otherwise she will struggle and perhaps not do as well as you or she would expect.