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1. We assure you that such things will not happen again in our future deliveries.

2. We'd like to avail ourselves this opportunity to assure you of our brond attention in handling your future order.

3. Our products are always good as the samples we send, I can promise there will be not debasement of quality.

4. I guarantee that there is not difference in quality between the products we send you next month and what's samples you saw just now.

5. I can promise you that the product we send you will be of A-one quality.

6. Our products are surely of standard quality.

7. I give you my word that the payment will be made not later than the end of June.

8. I promise I will check into these problems and find out if they were our fault.

9. We can make sure that goods avoid been damaged during the transit.

10. We will provide a fresh guarantee for the protection of the equipments repaired.