The training organisation is required to keep notes and the Examminer may ask to see the notes in preparation for your GFT.
However, in the UK the chances are that the examminer will be from the same organisation and they simply won't bother to check (cause they know the notes don't exist).
Provided that you complete all your training at that organisation then there will probably be no problems for you. (there could be problems for the organisation if they are checked).
However, if you decide to transfer to another organisation then there could be problems.
Not saying that this is the case but in the past, I have experienced organisations who try to lock students in by not making the required records available if they wish to go elsewhere.
Regards,
DFC