英语关于快递延迟的投诉信怎么写

(右上角)Dec 日期
(左上角)Dear Mr.Manager:
（起一段,空两格）,I’m writing to complain about the poor quality of mobil phone in your store.I bought an SQ200 mobile phone at The First department store.The mobile phone couldn't sent message and take photos after a short time.I hope The First department store can exchange a new one with me or return me the whole money.（起一段,中偏右）Yours,（起一段,对齐上排）作者名字、

一个例子供参考：
Dear General Manager Mr.XXX
With all due respect, I am writing to you a serious letter to get either refunded or exchanged on a washing machine purchased at your department store on 17th, May.
Only two week from the date we made the purchase, the machine was no longer functional and remained broken after being repaired again and again. I suspect the authority of the salesperson to make the decision, and therefore I am turning to you for your kindly help.
Sincerely
XXXXXX

祝开心喔~e799bee5baa6e79fa5e98193e78988e69d83336

英文投诉信如下，供您参考 （最好根据自己的实际情况，可以考虑用谷歌翻译修正一下。
Dear Sir/Madam,

I recently bought something from your website and sent to a freight fowarder called XX-XX (此处填转运的英文名称） asking them to send to my relatives who are in China.
But by now, the parcel still didnt' arrive. During this period, I have
sent many emails to them asking them to send asap, but without any
positive feedback.
I have a lot of friends who also used this forwarder; they have suffered
the same problems. From the information I know, there might be hundreds
or even thousands victims.
I am afraid this company might be a cheater who is using US territory to cheat buyers' property and money.
I have written to BBB and other US agency who might help on this case.
If there is still no help, I am going to report this crime.
I am writing this email to you to inform about this dishonest and
cheating behaviors, hoping you to block this forwarder to prevent them
from further cheating.
This forwarder's full information is as below:
(此处填这个无良转运的英文名称） (freight forwarder)
2401 Ogletown Rd (suite number is different for identifying different buyer),
Newark, Delaware, 19711.
More buyers might write you emails about similar problems. Please block this address to prevent more cheating to happen.

Thanks.
你的636f7079e799bee5baa6e79fa5e98193331姓名拼音

转过来的，如果有用，请给分，谢谢！
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