I was involved in a car accident they insurance company won't accept liability because they say my story don't match their driver story what could I d

Generally, anytime you are making a left hand turn and an accident occurs, you will be found primarily at fault if an accident occurs. Was the other vehicle traveling in the opposite direction as you? If you have no insurnace on the car and caused the accident, you can be held responsible for any damages you may have caused. There is a mandatory insurance law in the state of Wisconsin and you can be fined for not carrying insurrance. Under the Safety Responsibility Law, you can also lose your driving privleges, if you  cannot demonstrate that either (1) you have insurance or sufficient surety to cover the damages (2) become financially responsible to cover the damages or (3) prove the accident was not your fault.