Depending on the context, you may also consider these two:
我咪講咗囉？ Didn't I say it?
我都話架啦！ See? That's what I said!
However, the most direct way is to simply say:
我冇講錯。 I didn't say anything wrong.
我咪講咗囉？ Didn't I say it?
我都話架啦！ See? That's what I said!
However, the most direct way is to simply say:
我冇講錯。 I didn't say anything wrong.