I started a letter with:
I am writing this letter in complaint to the poor service and inappropriate food quality and price I received from your restaurant.
As I was checking my writing, I mentioned that every sample online begins like this:
I am writing this letter to complain about blah blah blah...
I am not sure if my statement is rare or incorrect. Please brighten me.
by the way, English is a foreign language to me, so please excuse any wrong use of language and feel free to correct each and any mistakes I may have made throughout this question. Any advice is appreciated.