Use this to level the final invoice such as forgetting to pay shipping costs or upgrading (from cheap to certified). You can also use it to pay for products on request.
Each "item" equals 0.01 cents. If you need to pay, for example, € 1, you will have to buy 100 items (0.01 X 100 = € 1).
Later, you will have to select the shipping method that best suits you. If it is to pay shipping costs, select the shipping method of "shipping costs are already included in the price". For certain products you will have to select a certified shipping method that we will indicate before paying (72-hour package, certified, urgent or cash on delivery).