几句投诉反馈的表达

LZ客气

不知道这封邮件是写给客人的还是合作伙伴的（比如在国外的distributor,有客户向他们投诉），略有不同。

Regarding the customer complains (如果是给直接客户的就用product issue） that you mentioned in your last email, we appologize about any inconvenience caused. We have already inspected and verified the product and stipulated relevant documents to prevent this happenning again.(这里没必要告诉客人文件的名称）

Would it be any question, please do not hesitate to contact us.

Dear customer,

Regarding the customer complaint you have made via email, we have made a thorough inspection of the product mentioned, and have consequently addressed the issue by creating a correction and prevention manual for future reference. We are sorry for any inconvenience caused and thank you for your aid in helping us improve our product.
If there are any further enquiries, please contact us.
Thank you.

As to the complain mentioned in your last E-mail, We have examined and verified the problemed-product, and w