Toyota Motor Credit Corporation Debt Collection Complaint

Toyota Motor Credit Corporation Debt collection department,

Cont'd attempts collect debt not owed Debt was paid New Jersey

I am very upset as I had a lease with Toyota Motor Credit, made all payments on time and the account was always in good standings with my payments. Went to trade in the car and buy a car from Toyota, was told if I owed anything remaining on the lease it would be tacked on to the new loan. I purchased another car from Toyota left again my account is in good standings currently. Months later pulled my credit and now the good paid off account reflects I owe $450.00 I called and I was told I went over my miles. I was informed I do not owe anything and now things changed. I am lost for words and what horrible business practices. Now I have a collection on the account I made my payments on time. This is NOT FAIR at all! Please help me CFPB