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Since you ordered more products, we need more time to produce. According to our original plan, I can send some goods on 12th and send the rest on 19th. Or I could send them all on 19th. The expected arrival date is 26th. Please reply as soon as possible to confirm this message.

Since you increase products' quantity,we need more time to produce.
According to the original plan,we can despatch some of the productions in 12,and rest of them in 19.
Or we can despatch all of them in 19.
You will recieve them in 26.
Please confirm and reply.

In the case of increase of products' categories and quantity in your order ,we need more time to produce.
According to the previous plan,we can make delivery of some shipment before 12th and the remaining order shall be delivered by 19th.Or we can deliver all the order by 19th and the arrival date shall be 26th.
Your earlier confirmation response is welcome.

Dear sir
Because you have added some new products and quantity,we need some time to produce them.According previous schedule, we can delivery some product in 12th ,and the rest of product will be shipment in 19th or you can select delivery all of them in 19th, expected time of arrival is 26th.please kindly give us a reply.
thank you

since you order more items and quality,we need more time to produce.according to our plan, we may send some goods on 12th, and send the rest on 19th, or send all the goods on 19th, the estimated time of arrival is 26th, please reply and confirm.