__________ (Company Name),
Date: __/__/____ (Date)
Subject: Complaint regarding network problem
With utmost respect, I would like to inform you that my name is ________ (Name) and I am a resident of _______ (Locality). I have been using your __________ (broadband/other) services for last ___________ (mention duration) and my user ID is ________ (mention your user ID). I beg to inform you that I am not getting the proper download speed for the connection provided to me. I have purchased a plan of a minimum download speed of ________ (mention speed) but I am getting only _________ (mention speed).
This is to request you to kindly look into the matter and get the same fixed at the earliest.
I shall be highly obliged for your kind support. In case of any queries, you may contact me at the contact details mentioned below.
________ (Contact Number)