YOU SAID:
Why did you not call me back last Wednesday night?
INTO JAPANESE
どうしてあなたは私に昨日の水曜日の夜に電話をかけなかったのですか?
BACK INTO ENGLISH
Why didn't you call me yesterday Wednesday night?
INTO JAPANESE
どうして昨日の水曜日の夜私に電話しなかったの?
BACK INTO ENGLISH
Why didn't you call me yesterday Wednesday night?
That didn't even make that much sense in English.