We just come back to office today. Shipping documents as attached are ok. We will send our PO to you next week for reference because we have annual counting stock, our system was closed, it can log in again next week.
Regarding to your contract number and invoice number, you no need to change to be our PO number, can running the number which begin with BT….. show on sale confirmation and invoice + packing list. For our PO number, just show as reference on documents of sale contract and invoice to match with each order.