I am writing with reference to your order po 517(CB5093).
We sincerely regret to inform you that an issue with reprocessing of CB2091 has made it impossible for us to ship the parts you ordered by 06th May as arranged.
We therefore ask for your understanding and request that you permit the postponement of shipment until the 13th of May.
We apologize once again for the inconvenience caused and look forward to your favorable response.