There are many users on discord using various methods of impersonation, so follow the steps below to ensure that you're not talking to one.
1) Go to your settings and enable developer mode
2) Right click the discord profile in question (not the message) and click "Copy ID"
3) Paste the copied Discord ID in the text box below
Do not listen to any of the excuses the impersonator may make to counter this. The verification will always be working.