✔ 最佳答案
Hope the below helps you:
Dear Sir,
This is to let you know that our freight forwarder had issued a payment advice to us on additional charges on shipping. This amount should be paid by C company and we have taken the liberty to issue you with a debit note for the above. Please kindly take note and collect the amount from C company directly.
Many thanks for your attention.
Yours truly,
xxxxx