Hi. Need some advice please. I have had new carpets fitted today and the fitter has caused damage to the skirting boards…sort of expect that to a degree but has also caused damage to a newly installed fire. Very defensive and said it wasn’t a Stanley blade but it was the back of the carpet as it can be very sharp. Thoughts would be welcome as there is no way a carpet can cause this amount of damage surel? I have photos of before the carpet was installed which clearly shows no damage at all.