Dear Sir,
We thank you for your letter dated____________
Further to this, we have handed over additional ____ copies of freight certificates to Mr. _________.
Also, please find enclosed our Cheque No. _______ dated __________ drawn on ________ Bank, (state name) for Rs. ____________
Kindly arrange to send us the documents and your official receipt for the same at your earliest convenience.
Thanking you
Yours faithfully