A teammate can look up your account if you send the email addresses you might have used to register. There is no self-serve search on the site, and Fin cannot find the account for you.
What to send in chat
List every email you might have used (personal, work, old Gmail, etc.).
Send that list in the conversation.
A person checks which address (if any) has an account and replies.
If none of the addresses match, say so in chat — we cannot invent a login from a name or a payment screenshot alone.
Not this situation
Control panel blocked on VPN/proxy — that is a login-access issue, not a forgotten email. Disable VPN/proxy or ask to whitelist your real IP.
Change the email on an existing account — PrivateProxy.me does not support changing the email on an account. See How can I change the email address associated with my PrivateProxy.me account?
Related articles
How can I change the email address associated with my PrivateProxy.me account?