That direction sign points upstairs, but I thought our platform was down here.

How to say “That direction sign points upstairs, but I thought our platform was down here.” in Japanese

In Japanese

あの案内標識(あんないひょうしき)は上(うえ)の階(かい)を指(さ)してるけど、乗(の)るホームってこの階(かい)じゃなかった？

Ano annai hyōshiki wa ue no kai o sashiteru kedo, noru hōmu tte kono kai ja nakatta?

That direction sign points upstairs, but I thought our platform was down here. in other languages