Is it fair?
I ask a user easily writes hello scammer
Do you think this person is deleting post or Edit?
No, it's not fair, but this is the Internet!
And as a brand representative you must know how to calmly handle such situations. Instead of attacking him, foccus more on proving him wrong.
/cut/
He probably won't come back here again. He is clearly way over his head with this marketing business. I can't be sure, but I got the impression that I was talking to a child or someone who doesn't know how to control their emotions.