I wonder where he got that from, That wasn't even me,You can never see my name on social media without my Country flag, That should tell you that this guy is a scam
I don't see how this makes him a scammer. He only provided some unsubstantial proofs and nothing else.
It is easy for anyone to change username. What relevant is UID of telegram or UID with number system one to prove that the both telegram ID is same. Either way there isn't anything to tag here so move on with little feud that you guys are having and bestjust ignore each other on telegram or any other ways through which you guys have connected.