Laying a new lawn
I have recently moved into a new build house on 27th December. The site manager and the landscape gardener laid the lawn in September 2017. When it rained heavily we noticed that the lawn was flooded, once the rain water had gone down, my husband looked closely at the lawn and you could roll the turf (in its original size) back like a roll of carpet, and there was hardly any soil underneath the turf but there does seem to be a lot of broken bricks etc.. My question is is this correct being as though it was laid 4 months ago. The landscape gardener said that it is perfectly fine for it to do this. I need some advice please.