英文E-mail，提醒客户尽快开立信用证。拜托，急。。

内容要求：
假设该客户是第一次合作的
说明我公司对信用证种类的要求
要求客户申请开立保兑信用证
说明我公司的规定：无信用证不能投产
交期不宽裕，提醒客户抓紧时间

Dear Sam:
With reference to the 4,000 dozen shirts under our Sales Confirmation No.SX260, we wish to draw your attention to the fact that the date of delivery is approaching but up to the present we have not received the covering L/C. Because we are the initial co-operation, You may not konw our request of the L/C. Our company's letter of credit requirement is confirmed Confirmed L/C,There is no L/C can not be provided to begin production .Please do you utmost to expedite its establishment so that we may execute the order within the prescribed time.
We look forward to receiving your favorable response at an early date.

虽然我很聪明，但这么说真的难到我了