United WONT Bring Joey Home

March 22nd our family flew from Frankfurt to Chicago, with our cat, Molly, and dog Joey. Our cat is the only pet that made it back. When we found out United and Lufthansa promised us that they would get him on a plane on the 28th, today is the 28th and he is not on a plane. They are now refusing to fly him refusing to pay for his board the last week like they’d promised and refusing to pay for our flight back to get him. We are lost without our beloved dog and we need your help since United won’t take responsibility for this mishap.