When purchasing postage, you are required to enter accurate data because it's what the cost of shipping is based on. You can avoid delays and unexpected charges by being 100% accurate when purchasing your postage, especially with exact dimensions and weights.

While your package is in transit, USPS will verify that you've purchased the correct amount of postage for your package. They will charge your Pirate Ship account for any differences they notice. Because of delays in the data, these adjustments can come up to 30 days after the package is delivered.

USPS will verify your packages for accurate:

If differences between what you entered when buying the postage and the actual package result in an underpayment or overpayment, they will automatically charge or credit your Pirate Ship account for the difference.

Note that the APV system does not apply Priority Mail Cubic rates to packages which had postage for another service. This means that in cases where Priority Mail Cubic would have been cheapest with the "new" dimensions and weight, USPS will essentially penalize you for entering inaccurate details. For example, if you purchase a USPS Ground Advantage label for a 15.9 ounce package with the dimensions of 7x7x3", but the package is found to actually be 159 ounces, then you will be charged the weight-based Priority Mail rate, even though the dimension-based Priority Mail Cubic rate would have been *much* cheaper. That's why it's important to enter accurate sizes & weights when buying postage!

To begin a dispute, head to that shipment either by looking up the tracking number or by using the link in the email, and click the “Dispute this adjustment” link:

When you click this link, a popup will appear asking you to describe why you’re disputing the charge:

For example, you can explain “All my orders weigh 15 ounces with no variation,” or “This was not a Flat Rate Envelope,” to make sure USPS knows what they’re looking for!

Once the adjustment has been disputed, you’ll see that reflected right on your shipment next to where the carrier adjustment is listed:

This will also be shown on your Carrier Adjustment Report so you can keep track of all of your disputes in one place!

Note that USPS typically takes up to 15 business days to process disputes once they're filed. It's only possible to file disputes up to 60 days after receiving the notification.

Once USPS approves the dispute, your account will be credited for the amount of the adjustment, and Pirate Ship will send you an email letting you know 🙌 This will also be reflected on the shipment and in your Carrier Adjustment Report.

If you have any questions or concerns about any adjustments that USPS has made to your account, just contact Pirate Ship's Support Crew and we'll help lend a hook 😃