How to write a letter of complaint?

Complaint Letter sample
Dear XXX,
I am writing to complain about the food quality of your food store, XXX Food.
On (Date), my family and I did not feel well due to bad stomach pains after dinner at XXX Food. We need to consult the doctor, and I enclose a copy of the doctor’s certificate.
Due to such discomfort, I demand compensation for the doctor's fees to the amount of $XXX.
Thank you very much for your kind attention. I am looking forward to hear from you.

Chinese translation

親愛的XXX號

我寫信抱怨食品質量您的食品店了XXX ，食物。

（日期） ，我的家人和我並不覺得，以及受惡劣胃痛晚飯後在三十食物。我們需要徵詢醫生，我附上一份醫生的證書。

由於這種不舒服，我要求賠償，該醫生的收費金額為xxx美元。

非常感謝您為您的親切關懷。我

英文個度解得ok ge...
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