To,
The Manager,
__________(Name of the Courier Company)
__________(Address of the Company)

Date: __/__/____(Date)

Subject: Complaint about poor delivery service

Respected Sir/Madam,

I am _________(Name) and I reside __________(Address).

I am writing this letter to bring to your notice that, I made a courier on _______(Date) having __________(Reference number) and tracking number __________(Tracking number). The address it was supposed to be delivered was _________(Received Address). I am not satisfied with the service of your company as __________(Mention Problem- delivery was late/ product was damaged due to careless delivery, others). The courier contained __________(fragile /important documents/ materials, others) that needed to be delivered with care, which your courier company failed to do so even after giving prior instructions.

I request you to please look into this matter and inform the reason for ________(Problem). Waiting for your response, please contact me on the details below.

Yours Sincerely/Faithfully,

__________(Signature)
__________(Name)
__________(Address)
__________(Contact Number)