如何写修改信用证的邮件？

1、信用证
Bank of North Italy
Irrevocable Credit No.4352
Milano,Oct.,27,1996
Jiangxi Comfort Imp.&Exp.Co.,Ltd.
Nanchang,China
Dear Sirs,
We herely establish an irrevocable letter of credit in your favor for account of Jiangxi Comfort Imp.&Exp.Co.,Ltd. for an amount of about USD212,500(Say U.S.Dollars Two Hundred and Twelve Thousand Five Hundred Only)available by your draft drawn on us at sight accompanied by the following documents:
1) Signed Commercial Invoice in triplicate contact No.96COT491.
2) Full set of clean shipped on board ocean bills of lading made out to order and blank endorsed,marked freight prepaid.
3) Inspection certificate of quality and weight in triplicate issued by Jiangxi Commodity Inspection Bureau Certificate of Orgin in triplicate.
4) Evidencing shipment of 500 metic tons of Chinese Red Beans at USD 425.00per metric ton FOB Tianjin.
5) Shipment is to be made on or before Nov.30,1996 from China to Genoa.
6) Partial shipments are prohibited.
7) Transhipment is prohibited.
8) 5% more or less is allowed both for the total quantity and amount.
9) This credit is valid in Italy until the 15th day after shipment.
Yours faithfully
Bank of North Italy
2、有关合同主要条款
合同号：96COT491
卖方：江西康福特进出口公司
买方：意大利ABC贸易公司
商品：500公吨中国红小豆，答应5%溢短装
单价：FOB天津每公吨425美元
总金额：212500美元（答应5%上下）
运输：从天津经海运至意大利，装运不晚于1996年11日，不答应分批 或转船
付款：由买方开立100%保兑的不可撤销信用证，装运后15天内在中国议付有效
从该合同可以看到些信用证还是有些地方需要修改，假如有爱好的话，可以自已试试看，如何给你的客人写邮件告知哪些地方需要修改？
答案如下：
Dear Sirs,
We have received your L/C No.4352 for Contract No.96COT491.After checking, we would request you to make the following amendments:
1)The L/C should be confirmed.
2)The L/C should read:’for account of ABC trading Co.,Italy.’
3)’Freight Prepaid’ should be ’Freight Collect.’
4)Inspection Certificate should be issued by the Jiangxi Commodity Inspection Bureau.
5)The credit is to be valid for negotiation in China instead of in Italy.
Please make the above amendments so that we may make arrangements for shipment.
Yours truly