Discord, it's really easy to figure out what it is. Chances are we share a server, if we don't then you probably know someone who does. I'm kinda everywhere.

Use some intuition and add the gmail address at the end of it.

Shake a stick angrily at god, I'll be in touch with you in 24 hours or less.

Ask the local rat population to pass on a message and make sure to leave up to date contact information with them.