This is not possible.
When you are on the payment page (the page where you confirm your order with your credit card), we display a clear and definitive summary of the contents of your order.
The total price, including all taxes, is also clearly displayed, at least 2 times.
This means you can confirm your order with all the care and attention you need when paying online.
If the price is not what you thought it would be, it's very likely that we've applied the minimum order requirement: more explanations on this page.
If this is the case, we will display it clearly at the top of the checkout page, giving you the opportunity to postpone your purchase.
The message will look like this: