Avon and Justine admin is no good

Avon and Justine services is up to ****. My accounts with Avon and Justine is paid in full. Avon account number *** Justine account number ***7. I am trying now for 2 days in a row just to get letters that my accounts is paid up to date. I apply for car finance and it is declained of Avon an Justine that is saying my accounts is not paid. There telephone lines is dead and they dont answer my emails