Delete user data

Hi,
I want to completely delete my user data on the app. That kind of reset where you delete everything
How can I do it?

My issue is that somehow my 2 different emails got crossed on the database so both different emails have access to the same API Key and both different emails can log into the same https://akaunting.com/ account.
Since this is a mess and the conflict might cause future issues, I would like to detele both right now and make a fresh start