Date: ___/___/____ (Date)
___________ (Manager/Customer Support Manager),
__________(Name of the company),
Subject: Complaint for poor service of telephone
This letter is to inform you that I am __________ (Name) and I am a resident of __________(mention address).
I am writing this letter regarding the poor services of telephone having landline number ________________(Number). From the past ______(duration – days/weeks/months) my telephone is not working properly. Due to this, I am facing many issues as I am also not able to use the _________ (telephone/internet/other) services. This is also affecting my work. I have already called your call support team regarding this issue, but they did not help me in this regard.
Therefore, kindly look into this matter and try to resolve this issue at the earliest. I am looking forward to hearing from you.