Harasment from collectors

I have been called from the collection agent from *** Ruan Von Rauenstein, I am left with 7 months of my car installments from 72 months and i believed that i am one month in arrears. This man called me saying that he is coming to collect my vehicle he was asked by MFC to collect my car. I have not seen an call from MFC or an email that my account is handed over this man is thretning to collect my car regardless. I need urgent assistance from this harrasment