Sentences arrangement. 1. However, we have to inform you that we cannot grant you the discount of 20%. 2. We thank you for your order of Dec. 7. 3. If you really take into consideration our serious situation, you would agree, we wish, to the 15% discount we have offered. 4. As stated in our letter of November 20, we cannot possibly make a discount exceeding 15%. 5. We promise you that we will give your order our best attention. 6. We will ask you, therefore, to confirm this as soon as possible because we can guarantee prompt shipment if we can start on your immediate order.