I have thought about the possibility of online lessons, but there are a lot of stories about scams etc.
I totally understand that your French may not be good enough to get lessons from a French speaking teacher but using the book and copying from the CD will not really offer a quality learning experience. There are other aspects to performing piano besides getting the notes and dynamics right. There is touch, posture and fingering to consider. You would have to read and understand that aural and viva voce as outlined in the syllabus in order to ensure that you are fully prepared for the exam which to me, it quite a feat!
Have you seen the syllabus? What is your musical background or experience?
But since moving, I have put everything on one side to get settled with the house and schooling for my son etc. Now the dust has settled a bit I would like to try and start again.
My musical experience is as mentioned above, very little. But I am enthusiastic!!