德国汉堡 关于付款问题，急

Many thanks for your prompt reply and for the interesting pictures.
The price
is workable and also the quality of your tea.

Analysis we will order
after closing contracts. Our requirements are, that the tea need 100% in line
with EU limits but we don′t accept analytical variance of 50%.

Please
understand, we don′t accept any way of prepayment.
We only accept the
mentioned payment term (60 days after date of B/L). And you can send the
documents via bank.
If you don′t have the possibility to accept this payment
I see no chance to close an contract.
怎么回复这样的客户？