I would like your supporting for original invoice case as well.
In practice continue that after Warehouse Department is booking inventory then they sent invoice to us to posting Account Payable. But I am not sure that is the original one from your side. Indeed all of original invoice we are getting too late ,we just had received original invoice that was issued on November by mail not courier at the moment.
It would be good , if possible can you send the original invoice to us via e-mail ?