You must find a guardian in U.K. for your daughter. If you don't have any relative in UK, you can join the guardianship services. The guardianship fee is around GBP700-800/year plus accommodation fee for the half term and traveling fee.
I am not sure about the fees. But my son is learning his English from UK Education Association. They also assist students to enter into British schools.
Perhaps it is worth to get some information from there.