Ask to cancel an order promptly before it’s dispatched, with a polite reason and clear request.
Subject: Cancel order request – [Order number] – [Item title]
Hi [Seller name],
I’m contacting you to request cancellation of my order [Order number] for [Item title].
If it hasn’t been dispatched yet, please cancel the order and confirm the refund. The reason is: [Reason – ordered by mistake / no longer needed / wrong item].
Thank you for your help,
[Your name]