I have a 1 lb, 15 in x 15 in by 8 in box. I should see see a charge of $16.80 or less for custom box priorioty mail since that is retail USPS. However, ebay is quoting me $40.49. Many other choices removed for brevity including media mail for $4.13. How do I get help on this issue? Thanks,Greg Greg

Hi @glaymon I would double check the weight and size entered for the label parameters.