Hi @stylise,
Thanks for reaching out!
Although I have commercial rates enabled in the settings, the plugin is serving retail rates.
I have a few questions for you to try and figure out what the possible problem might be.
1. Do you have a commercial account with USPS so you can offer commercial rates?
2. If yes, did the commercial rates work before and no changes were made to your site?
3. Have you enabled debug logging? Do you see any errors there?
Could you please send us screenshots of your settings so we can investigate this further? I recommend https://snipboard.io for easily sharing screenshots – please follow the instructions on that page, then paste the URL in this thread.
Additionally, please share a copy of your site’s System Status. You can find it via WooCommerce > Status. Select “Get system report” and then “Copy for support”. Once you’ve done that, paste it here in your response.
Thanks!