Please attach a copy of the invoice for your company bring to the billing (with signature, the recipient document) so that I will be taken to check with the relevant parties to achieve clarity on the track.
Please attach a copy of the invoice to the company to your bill. (Autographed documents receiver) so that I will be checking with the parties involved to clear the track.
Please attach a copy of invoice and billing, your company (signed) to the recipient documents check with the relevant parties in order to clear the track.