Dents in wooden floor

[Chimley]

I had my wooden floor relaquered yesterday and came home to see these dents in the floor (it was dark when I came home). There's probably a dozen or so across the hallway/dining room.

They definitely weren't there before and I assume resulted from the heavy machinery they brought in.

I need to respond to the emailed invoice today and I'm not sure if I'm being too picky or if this is unacceptable. If so, what remedy can I ask for?

Those are the ones I could get a good photo of in the dark last night.

Any thoughts?

I would send photos and ask what they are going to do to fix the damage they've caused.