Woocommerce B2B and taxes

Hey guys,

I have a situation with WooCommerce.

I have a client with a WooCommerce store. He bought this plugin : https://woocommerce.com/products/b2b-for-woocommerce/

It works perfectly : a guest customer has an inc. VAT price, and a logged one has an exc. VAT price.

Problem, in France, we have to show the exc. VAT price everywhere, except the total on the cart (and the checkout).
It means that people have to see the exc. VAT price, but at the end they pay with the taxes, and they need to see the VAT details.

So I need to force the inc. VAT price for the logged people, do you know a filter who can override this ?

The page I need help with: [log in to see the link]