【英语翻译】之前跟你提过有一笔额外费，落箱费（drop fee）

Question

之前在电话中跟你提过有一笔额外费，500RMB的落箱费（drop fee）。昨天发给你的账单（Debit note）中忘记加上了，现在已做修改，请确认。

Answer 1

Dear xxx

I have mentioned there will be an additional expense over the phone call previously. That is the drop fee about 500 RMB. But I forgot to add it in the Debit Note which was sent to you yesterday. I have modified the Note, please kindly confirm. Sorry for any inconvenience caused and thank you for your understanding!

Best regards

xxx

Answer 2

Before I have talked with you about an extra expense on the phone -- a drop fee of 500 RMB,but you forgot to include it in the Debit note you e-mailed yesterday . Now I have corrected it , confirm please . Thank you !

Answer 3

Before told you on the phone with an additional fee, RMB 500 drop fee. Yesterday sent to your Debit note forgot to plus, change now,
please confirm.