Customer service does not have additional information than the tracking with USPS/UPS shows. You may need to contact USPS/UPS for further details.
Once the shipment leaves the warehouse, it is up to the carrier to update the tracking.
To stay updated on your delivery, please sign up for the free USPS Informed Delivery service at https://informeddelivery.usps.com/box/pages/intro/start.action.
Most orders can be tracked with the following services: