FAQ - Customer Service How do I update my equipment if there is a rate change? The Post Office periodically makes changes to the price of postage. What do we need to do when there is a rate change? I printed the wrong amount of postage on a label/envelope. How can I receive a refund for this? What is the process for having my old mailing equipment picked-up? I would like to order new or additional equipment. Who should I contact? How can I change my billing address? What are the hours of operation? I recently ordered new equipment. How long will it take to arrive? Customer service Answers to customer service questions. Learn more Supplies Answers relating to supplies. Learn more Postage Answers relating to your postage machine. Learn more