AAA Good Times

I purchased a car with Memorial Motors. I was late in a payment. They came repo'd the car and sent a 20 day letter to pay up or the vehicle will be sold. I received the letter on the 8th and the same day employees calling saying someone's driving the car. They have someone else in my vehicle with my kids personal information. Something needs to be done. They are a rip off. I have been saving up to get my car back and this happens.