unprofessional conduct/threats

I lost my job about 8 months, and ihad gotten behind almost 2 months on my car payment. I was able to get caught up. However when my unemployment ran out, I was behind like 35 days on my payment. I received a restricted call on my cell, when my sister anwered the phone, this man, who would not give her his name, started screaming at her, calling her my name, and yelling at her that he was tired of playing games, and saying pay a payment today or the car is ours tonight, and we will not give it back, and cursing, yes cursing, at her!!! I tried to call the company back and speak to a supervisor, however I never got one on the phone. How dare they... He acted like it was his money that I was late on the payment too. Cps I will b reporting your company to the better business bureau, and that I promise....