Don't try to be too clever.
I'm not saying I can confirm.
Kuku's or AllanLee's assertion is as good as mine.
This is a light hearted discussion so don't try to bring your usual meaness into it.
Perhaps his use of the word "confirm" was no different from what you meant when you "said again".
The reason I'm saying this is that there was a time when I used the phrase "go out on a limb" and your reply was "I want your limb". Remember?
Cut out the meaness or save it for others who are mean to you. Most of these exchanges are light hearted and jovial and meant for entertainment.