Dear Khun Bung-on,
Thank you very much for your information. I have already informed my accounting regardign this PO.
Citrus accounting usually send the invoice to Securitas after the guests check-out according to the invoice routines.
However, if you require us to send the invoice before the guest check-in or whenever you prefer, please let us know, so we can process for you accordingly.
Thank you very much for your kind collaboration.
Should you need any further information or assistances, please feel free to contact me at all time.