after 3 years of platinum, i still wait my first upg to tempo Challenge or business within europe
Curiously , the one and only upg i ever got was on an award flight HGK-CDG!

otherwise i noticed since a couple of flights, a welcome MR bebert when boarding , the FA noticing my status

Related to OP, i had a cheapo 100eur CDG-LIS (i arrived late due to RER wild strike) rebooked to the next flight for free. But it took some time to have the employee asking her supervisor to come and look at my case! But they went beyond the border for me.

actually, the AF rules , even if not really nice sometimes, are enforced and they know, from time to time, please their best customers. So i do not complain: i have what i paid.
Reliability is the first step of sustainability!