What can a customer do if their package is lost during delivery?

A customer whose package is lost during delivery has the option to file a complaint and request tracking information. This is the appropriate course of action as it allows the customer to formally report the issue while also seeking detailed information about the package's journey. Tracking information can provide insight into where the package was last recorded and aid in understanding the circumstances surrounding the loss.

This process not only helps in potentially locating the package but also establishes a paper trail that can be useful if further actions or claims need to be pursued. It is important for customers to follow this procedure because it engages the postal service in the resolution of the issue, where they can take necessary steps to investigate and address the missing package.

The other options do not effectively empower the customer to resolve the situation or seek assistance. For instance, doing nothing once the package is sent neglects the customer's rights and the support available. Contacting only the sender limits the potential for resolution since the postal service is responsible for the delivery. Going directly to the shipping center may not result in the assistance needed unless the right protocols are followed to file a formal report.