Since you are in the UK, I am also not sure what your rights are as a patient/client. In the US you have the right to see your therapy records. The details of how those records are shown to you may vary from state to state, but one way or another you have the right to see either the copies, or the summary or to inspect the originals in session. There only exemption when the therapist may refuse to show you the records is if they believe it would be detrimental for your mental state to see them.