✔ 最佳答案
Dear Sir/Madam
We have placed an order with your company last year (provide date to them if possible) on the product abc with xxxx pieces at (price) [reference/order # xxxxx], but due to your extensive delay on delivery, we hereby inform you to cancel the captioned order with immediate effect.
As for the payment (amount) we have already made on (date), please kindly take it as the deposit for our upcoming order and use it for write off.
Please kindly follow up for us on this case and send us your confirmation at your earliest convenience.
Thank you very much for your kind attention.
Best regards