How do you say something in polite way?
I'm expecting the invoice from you for tomorrow's payment.

I'd like to email my business counterpart that I'm waiting for her to give me the invoice but don't want to push her. I just need the invoice within tomorrow so I can make the payment tomorrow. How can I say that politely?

Question

How do you say something in polite way?
I'm expecting the invoice from you for tomorrow's payment.

I'd like to email my business counterpart that I'm waiting for her to give me the invoice but don't want to push her. I just need the invoice within tomorrow so I can make the payment tomorrow. How can I say that politely?

Answer

You could say something a little more diplomatic like: 
"If I could please have the invoice from you for tomorrow's payment, that would be greatly appreciated! Thank you."

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