Hi BGCarrera32,
Thanks for being a Wooforce customer!
We regret the inconvenience caused to you due to incorrect flat rates.
However, the issue is caused due to the rates generated from Stamps.com API and you will face the same issue with all plugins.
Stamps API currently returns all rates in response without considering the size of the package. We have communicated this to Stamps.com and have got an affirmative response from them acknowledging the problem.
Since, they have not provided any time-frame to correct this issue, we have developed a patch which can help you select the correct boxes and fetch the rates for a selected Flat rate box.
The link to the patch is here -
Ignore the flat rates returned by Stamps which are less in size than the package requested – Support
For any issue related to rates after using the patch, you can always contact us via support.wooforce.com.
Thanks & Regards,
Ando,
Wooforce.com