悬赏100分,求助编写一段英文贸易往来电函

Client:
It is because that we are suffering from the financial crisis,we want ot cancel all the order subsequently.
Trading co.:
Thank you for your sincere reply.We actually can underestand your situation and difficulty.But I hope you can consider it once again.We have been cooperated for many years,and we trust each other all the time.I thinks it's very precious for all of us.In order to keep our good cooperation,we can make a concession if you have some difficulty.
C:
How will you make us the concession?Pls advise.If we can not accept either,we'll insist on my before advice.
T:
Thanks for your understanding.After a discussing in our company,if you can ensure you will give us at least 10 orders per month,we can reduce USD20000.00 as your discount.You know,it's a super high discount~Hope you will be satisfied of it.
Looking forward for your kindly reply.
.

Dear sirs,
Thank you for your letter.
We can reduce our price by USD20000.But you should excute the order and promise that you will place 10 orders with us in every months.
Look forward to your early reply!
Best Regards
Your name