Translate "Scratch that" in the meaning "disregard previous statement" to Japanese


For example, when ordering something, if you ask for one, but then think again
and want to order two, you would say "One, scratch that, two." The closest I
found is いや, but that appears to be casual/rude.




If it were me, a typical 外国人, I would say, "あっ、すみません。①ではなくて、②お願いします。" I think
it's simple and with the all-encompassing "excuse me"/"sorry" word, すみません, the
expression becomes more polite.




If it were me, a typical 外国人, I would say, "あっ、すみません。①ではなくて、②お願いします。" I think
it's simple and with the all-encompassing "excuse me"/"sorry" word, すみません, the
expression becomes more polite.

