to inform you that on (date), I purchased (or had repaired) a (name of the product with
the serial or model number or service performed). I made this purchase at (location, date
details of the transaction).
I am sorry to inform you that your product (or service) has not performed well because
(state the problem). I would appreciate it highly if you take immediate steps to resolve
the problem (state the specific action you want). I am also enclosing copies of my records
(receipts, guarantees, warranties, cancelled checks, contracts, model and serial numbers,
look forward to your reply and seek an immediate resolution to my problem. I shall wait
(set a time limit) before seeking third-party assistance. Kindly contact me at the above
address or by phone (phone number) in case you have any queries.