If Tax Toggle behaves differently with a particular theme or plugin, a few details help us reproduce the issue.
Describe what happens
Send the page URL, the result you expected, the result you saw, and the steps that trigger it. Include the versions of WordPress, WooCommerce, Tax Toggle, and the theme or plugin you suspect.
For a price issue, say which product and visitor location you used. A screenshot can help, but do not include customer information, license keys, or login details.
Isolate a conflict safely
If you have a staging site, try a default WordPress theme and temporarily disable other plugins there. Re-enable them one at a time until the issue returns.
Keep live checkout available. Do not deactivate your production theme or commerce plugins just to perform a conflict test.
Contact us
Open a request through YMMV support. If we need a copy of a theme or plugin for testing, we will discuss a suitable way to provide it in the support conversation.
Do not send a database export, credentials, or private customer data.