想搵人幫我譯返做英文呀,,唔該晒 ~ ^^

Dear XXX
Re: Outstanding payment
I refer to the captioned matter.
Having checked your payment records, we had previously received two cheques from you via mailing. However, there were total three invoices issued to your company at the amount of $1,300. The payable amount received from the said two cheques can only settle two invoices. As such, there is still one outstanding invoice pending for your settlement.
Attached please find the copies of the three invoices for your perusal. Should you have any queries, please feel free to contact our Accounts Department at xxxx xxxx.
We look forward to receiving your payment ASAP.
Best regards,
XXX

Dear Sir/Madam,

We have received 2 pieces of cheque from you. However, our record shows that we have sent you 3 invoices. Each of them bills you $1300. So, those 2 cheques you have sent are regarded as an offset to 2 of the invoices, which means one invoice is still outstanding.

Attached please kindly find the 3 pieces of invoice for your reference.

Thank you.