Dear …
RE: Returning defective__(name of product)__ for Full Refund
We are returning the __(name of product)__ that __(Name of Company)__ purchased from your company on __(date)__ for __($amount)__. Attached please find a copy of our receipt of purchase.
We are returning this item because the __(type of feature)__ malfunctions. It does not function as indicated by the manufacturer. It should __(describe how it should perform)__ but instead, it __(describe what it does instead)__.
Please reimburse __(name of Company)__ for the full amount of __($amount)__ for this purchase. Thank you.
Yours truly,