Over the winter we had work done on the house, finished off with laying a patio. It's unfortunately got a dip right by the back door meaning there's often a puddle. Meaning we track wet in every time we go to the bin or let the dog out. Of course a few months later they've now gone awol, not answering calls etc. Where do I stand on getting them back? Do I just cut my losses and get someone else in to fix? There are also 4 loose slabs.