The user has already deleted previous conversations in Telegram
Let me explain to you that the user has proven that he sent this email so don't tell me it's a fake email because the user has proven it from his words you can check it
Just trying to understand.
How did you guys end up communicating through telegram, yet you were already doing it using email?
Without the screenshot of you asking him to send you an Ether address for a refund. It will be hard to prove who is a scammer and who is not