Hi
I am redoing my exams at the moment as I never took the CPL or IR with 3 years of passing.
For myself I needed to be put forward by a school and did this through my previous one (CATS). I do not need to redo the brush up course so it was a low fee just to give me access to the online study guides and progress test. Who did you go through previously?
As for study guides, there are so many available used I ended up buying a few and have a full set of CATS, Bristol and Oxford ones. I also use the Bristol online question bank as preparation for the exams.