Welcome to the ZPDI website. The purpose of this site is to further extend the services we provide to our customers. We offer a way to contact customer service regarding questions on your phone bill for charges billed by ZPDI. We also offer answers to some of the most commonly asked questions about our products and services.

To submit an online billing inquiry, completely fill out the form on the customer service page.

For basic information about ZPDI, our products and services, and some frequently asked questions, go to our FAQ page.

You may also obtain customer service support by dialing the toll free number located on your phone bill.