关于消费者投诉方面的英语日常用语

Dear Sir/Madam,

i am writing to express my dissatisfaction with XXX （厂家）products and request alternate starting XXX （退还货的日期）

the main problem i found is that extremely low quality class exists in your products against your advertisement descriptions on television and internet.moreover, the colors were fade away after first washing in the washing machine.

i would be very grateful if you consider this request at your earliest convenience. thank you for your help in this matter. i look forward to hearing from you soon.

your sincerely,
XXX（姓名）