I think I am confused. I have always tipped at an AI: maid, bellboy, restaurants etc.

But at "outside" restos, are you saying that a mandatory 10% or 15% is added to the bill and this is NOT considered a tip, and you should still tip ON TOP of that........if so, that's a bit much. My inclination would be to leave perhaps an extra 10%.

I am going to Mathilde in September and I want to "do the right thing" as I consider that a "fine dining" experience. I think I may ask them before I go about the service charge/tipping