Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, I played this server on launch and I played a paladin until level 20 before I got bored and took a break for a few months. Upon returning to my account I find that my level 20 paladin is not on it, I fear that I may have made it on an account with an unusual username that I have forgotten. Any help would be greatly appreciated. On the launch I had made multiple accounts to connect because of the glitch with getting stuck on the wrong server and the account being bugged, which I didn't know how to solve until much later.

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FAQs > "How can I find out what my account name is?" (First FAQ)

Check your Account folder inside the WoW Classic folder as that has every account and character you've ever logged in and created.

Hey, thanks for the reply. I've changed PC since I started playing the server, so this only shows the one account I've been using. Is there any other way I could find out my username? The characters name was Kelio I believe - Kelio, level 20 dwarf paladin. Do characters get deleted at any point by nostalrius for inactivity?

Also, I had cleared out my E-Mail since then so I no longer have any Emails from Nostalrius in there to recover the username from account activation.