Problem with taxes

Hello webflow community,

The service I give is free of taxes. I set the price and I put the button “on” on the “I’ve included all taxes in my prices” in the taxes/ecommerce settings. I put “exempt from taxes” in the default taxes category.

When I try to make custum emails it automaticaly put a 5% taxes on my service.

How can I fix that?

thx

here’s my read only
https://preview.webflow.com/preview/lagence-de-la-relance-ea44ea?utm_medium=preview_link&utm_source=designer&utm_content=lagence-de-la-relance-ea44ea&preview=3814b5c2f616a2a2703b21ec83ae377a&mode=preview