Hi all,
my first contribution : It is working well for me
I use to book through avis.de which basicaly shows much cheaper rates that avis.fr (you can also use avis.it or avis.es) and also brings unlimitted mileage where avis.fr limits you to 150 km a day I believe.
Anyway, for this Avis accumulator, using AWD code F983000 (FB Platinium) gives you 15% rebate if you book a 3 days rental and you comply to the get the extra miles accumulator.
For Gold members I believe AWD code is F986000 (10% rebate)
Normaly I get 2100 + 500 miles for each 3 days rental.
At the 3rd rental, mid April, instead of 2100 I got a 5100 reward.
The 4th rental I got 7600, the 5th was 14100 and now I received a BIG 20100 ^
I never forget to check my FB card number on the avis rental form !