Cheryl Lynn Plaxico

I called Finance Company after minor wear & tear on 2016 Kia Soul simple fix tune up plugs & coils they put Alternator on car instead couple hrs of driving vehicle oil light came on & check engine light came on was still under warranty per The Key returned car to have fixed properly had car over a mo...nth I called to check on my vehicle only to be told I need a motor I didn't believe that asked gentlemen to ask how they came up with me needing a motor & to call me back, well guy never called me back Matt was his name & a wk later Billy calls me telling me my car is ready & they put a used motor in my vehicle without my permission nor did they ever communicate with me regarding my car only to drive it for a wk & it broke down again same issue loss of power , check engine light on & Auto Finance won't do anything to deduct from balance nor will they do even swap to fix issue they cause even offered me to pay off balance but have to sign a new contract I refused & still making car payments on car I can't drive & have been renting cars just so I can work I'm so stressed out can you help me out this mess?