7) Ссылаемся на наш заказ № ... на

7) Ссылаемся на наш заказ № ... на ... (товар), прибывший ... (дата).
При проверке груза мы обнаружили, что ... (подробности претензии).
Мы были бы благодарны, если бы Вы (исправили эту ошибку – прислали качественный товар взамен дефектного и т.д.) как можно скорее и сообщили нам обратной почтой, какие шаги предпринимаются вами в этом направлении.

Результаты (английский) 1:

7) refer to our order No. ... on ... (goods) arrived ... (date).When checking the cargo we found that ... (details of the claim).We would be grateful if you could (have corrected this error-sent a quality product to replace the defective, etc.) as soon as possible and letting us mail-back, what steps are being taken in this direction.

Результаты (английский) 2:

7) Reference is made to our order number to the ... ... (products), arrived ... (date).
We found when checking the cargo, which ... (more claims).
We would be grateful if you could (have corrected this error - sent a quality product to replace defective, etc.) as soon as possible and let us return, what steps are being taken you in this direction.

Результаты (английский) 3:

7) refer to our order no.... on the... (product) to come. (date).when checking the goods we found that... (the details of the claim).we would be grateful if you got this error is sent to a quality product to replace a defective, etc.) as soon as possible and gave us feedback mail, what steps had been taken in that direction.