If you have an account on Battlenet, there are a few ways to delete it.

  1. Log in to your account and click the “delete account” link at the top of the page.
  2. Type in your name and password and click the “delete” button.
  3. If you’re using a Battlenet VPN, please note that deleting an account will prevent you from logging in for future visits.

Account deletion is irreversible and will remove any data from your profile. To get a confirmation of deletion, visit Blizzard’s support page and fill out the information.

Follow these steps to manually uninstall the Battle.net desktop app:1) Go to control panel and click on Uninstall a program.2) Right-click on Battle.net and select Uninstall. …If the client is not found, continue with step 3…3) Delete the battle charge folder to remove any remaining Blizzard Battle.net desktop program helper applications

The character you’re trying to log-in is on Ravencrest. You have not properly logged out of that realm and everything will be available in the selection screen for crowns online store.