Apparently things like these only happen in German-speaking countries
I was in Austria beginning of May and the mini bar there was being refilled on a daily basis - and I didn't have to pay any extra fees! I think it was because I booked something like a 'package' (
here is where I made my booking, the hotel I stayed in was called Aqua Dome), which apparently included getting free mini bar refills, but I wasn't expecting that, so I was pretty suprised when I arrived.
Hotels should do that way more often, it really lifts your mood!