Cannot sign in?

Sign in links go to the email on your officer account. If you cannot read that inbox any more:

Your club has another owner.

Ask them to open Handover in renuzy and add you with your new email. That takes a minute and needs nobody else.

You are the only owner, or nobody is answering.

Tell us below. We check with your club before changing anything, because whoever controls the account controls the money records.