請幫忙翻譯句子成英文,謝謝!!

In fact, I have repeatedly enquired the post office about the issue. They replied that the China post office had confirmed that the mail was delivered on 5 March and signed by your staff. However, you replied that you still did not receive the mail until you notified us on 28 March that the mail was delivered. In future, please pay special attention to handling our mails once they are delivered and signed by your staff so as to prevent that the mails are treated as lost and incurred unnecessary STOP PAYMENT CHARGES. But for this time, due to our usual good relationship we will not deduct the $100 stop payment charges from your commission for December.To ensure the successful delivery of cheques to your company, and to avoid incurring unnecessary stop payment charges due to lost mail, we would like to propose the following measures for your considerations:
1) We would like to use double registered mail to send out the cheque to avoid any unnecessary dispute. For the $25 double registered mail fee, we will bear the original registered mail fee of $15 and will you please bear the $10 discrepancy?2) If you do not prefer to use double registered mail to send out the cheque, will you please bear the stop payment charges in case if the mails are lost?

Actually I already the result which obtains to the post office inquiry all am many times china post office confirmed sent on March 5 to have the expensive department staff members to expensive Si Bing to receive and sign for the mail, but the expensive department continuously replied actually has still not received, only then informed until March 28 to take in the mail, passed through this event, we each time will send out in the future mail, after as soon as passed through arrives at expensive Si Bing to have the expensive department staff members to receive and sign for, please earnestly process the mail to receive and sign for after the whereabouts condition, in order to avoid misunderstood for sent loses the mail, paid nonessential STOP PAYMENT CHG.In order to express the friendly relations, this we cannot deduct 100 Yuan stop payment chg in December commission. In order to safeguard the check to be able to succeed transmits your firm, but but also cannot for send loses the mail to have to pay nonessential STOP PAYMENT CHG. Following several plan please expensive department consider that,1) We hoped will use the registered letter with a return receipt requested way mail check to guarantee in the future the nonessential dispute, we will be able to pay register the cost 15 Yuan, the registered letter with a return receipt requested are originally 25 Yuan, expensive department whether bear difference 10 Yuan?2) If does not use the registered letter with a return receipt requested way mail check, the mail sent not luckily has lost, after the expensive department whether or not undertook sends loses the stop payment expense which the check mail had to pay?

Actually I already the result which obtains to the post office inquiry am many times china post office confirmed that sent on March 5 to have the expensive department staff members to expensive Si Bingyi to receive and sign for the mail, but the expensive department actually has replied had still not received, only then informed until March 28 to take in the mail, passed through this event, we each time will send in the future out mail, as soon as after passing through arrives at expensive Si Bing to have the expensive department staff members received and signed for, after please earnestly do process the mail received and signed for the whereabouts condition, in order to avoid misunderstood to send loses the mail, paid nonessential STOP PAYMENT CHG.

In order to express the friendly relations, this we will not deduct 100 Yuan stop payment chg in December commission.

In order to safeguard the check to be able to succeed transmits your firm, and to not send loses the mail, but must pay nonessential STOP PAYMENT CHG. The following several plan please expensive department consider:

1) We hoped that uses the registered letter with a return receipt requested way mail check to guarantee the nonessential dispute, we will pay register the cost 15 Yuan, the registered letter with a return receipt requested will be 25 Yuan originally in the future, expensive department whether bear difference 10 Yuan?

2) If does not use the registered letter with a return receipt requested way mail check, the mail sent not luckily has lost, the stop payment expense which whether after the expensive department did undertake sent loses check mail, must pay?