To: opdirector@officegreen.com; hrspecialist@officegreen.com; srvp@officegreen.com Subject: Eskaltining Dear (SOaAD), I recently complained about the (product or service) I received from (company name), but I have yet to receive a reply. (Insert details of your complaint or issue) I would like to escalate my complaint and request that someone responds to me immediately. You can contact me at any point at (insert contact details). I expect to hear from you by (insert date). Sign-off, (Your name)