I wrote a letter of complaint(投诉)，and the airline have promi

I wrote a letter of complaint, and the airline has promised a letter of complaint 寻A letter of complaint i wrote a letter. I wrote a letter to the leader of the Red Arrows 急需Letter of complaint! 英语单词拼写1 I wrote a letter to the manager and wanted to a__ fo I wrote the letter __ Frnch __ my new pen.A:in,with B:to,of 投诉信怎么写?要求：write a letter of complaint.the company for which The professor wrote for him a letter of recommendation with 《投诉信》A letter of complaint用英语怎么写? How to Write a Letter of Complaint(如何写投诉信)