YOU SAID:

I am currently writing this to say that I have a complaint that the item I have ordered has not currently arrive

INTO JAPANESE

私は現在、注文した商品が現在到着していないという苦情があると言ってこれを書いています

BACK INTO ENGLISH

I'm currently writing this saying there are complaints that the item I ordered hasn't arrived now

INTO JAPANESE

私は現在、注文した商品が届いていないという苦情があると書いています。

BACK INTO ENGLISH

I am currently writing a complaint that the item I ordered has not arrived.

INTO JAPANESE

現在、注文した商品が届いていないという苦情を書いています。

BACK INTO ENGLISH

I am currently writing a complaint that the item I ordered has not arrived.