We are in the horizontal bore drilling industry and we hit 2 water lines one of which was not marked and they are holding our payment for over 6 months now due to the water company invoices for hitting those and lines and they are trying to hold us responsible for several others that wasn't us. We didn't even receive an invoice for the ones we did hit until yesterday and there is still places we aren't responsible for on those invoices. The company that is holding our payment is also not helping the water company figure out what subcontractor is responsible for for their invoices. We are needing that payment and have been because we are about to have to shut our company down due to their holding of payment. What should we do? And they still haven't paid any of the retain-age fees from prior invoices.