1. Call the customer service hotline. Auto loan companies usually provide a customer service hotline. You can contact the customer service staff by calling this number.

2. Send e-mail. If the auto loan company provides customer service e-mail, you can contact them by sending e-mail.

3. Use the online customer service system of the auto loan company. Some auto loan companies provide online customer service systems, through which you can chat online or send messages to customer service personnel.