(1) For sliding-scale prices of the "identical personalisation" products, the quantity used in the calculation is that defined in the basket (using the drop-down list provided for this purpose), on the line corresponding to the product in question.
(2) For the sliding-scale prices of the "different personalisation" products, the quantity used in the calculation corresponds to the number of times the same product appears in the basket in the form of separate lines (without taking account of the quantity defined on each line).