I have been sued by one of my supplier for a PO from our LLC in Texas. They changed our terms and marked up the PO with new terms and sent it back to us. We told them we have to issue a new PO and wait until new terms are approved. But they went ahead and shipped a small shipment against the PO. We kept this shipment but told them that this is not correct product but we will use this against an older project. We had new specifications in the new larger PO. They sent many emails asking for approved new PO but we told them to hold. Now they claim that they already bought all the material. They are filing a lawsuit for PO value plus attorney fee. I offered them to settle it at cost if they show that the inventory was purchased post our PO and can not be used elsewhere. How much they would they get in court if they win? Do they really have a contract?