Yes, when you add something to the cart it shows:

So the product is 99, the total is 99 and the total ex vat is 99
Then I click on Payment. It will show:

So the product is still 99, but the total changed to 119,79 incl. vat
Then I go back to the cart and now it will show:

So the product is 99,- the total is 119,79 and the total ex vat is still 99,-
This is a total show stopper, vat should always be shown so, in the 1st image, it should look like the 3rd image.
Otherwise we can't use this...