How to display discounts without tax ?

[Welele]

Hi,

 

I'm using Prestashop 1.6.0.14  and I'm facing the following issue:

 

I have activated the B2B mode and set up all parameters so that all the prices are displayed without VAT. So far so good. The problem is when I create a cart rule (excluding tax)

In resume cart before finish the order works fine:

 

 

 

But this carts rule appears on the "order-confirmation" e-mail to customer and administrator with the VAT included (21%). I would like it to appear without tax as well.

 

 

 

Maybe I have to change something in the "classes/PaymentModule.php" file but I don't know what precisely.

Can anyone help, please ?

 

Thank you.