How to remove a customer

Just wondering:

• how to remove a customer from fCart customers list permanently. It is a risky action (I know) but how to deal with testers, bots, account with uncompleted transactions or fake customers when they dont have WP Account created but were our customers.

  It would be nice to keep our fCart customer records clean and somehow manage fCart xCustomers.

  Such a operation of deleting a customer should have double confirmation (enter text: DELETE before proceeding). This operation could be enabled/disabled and processed only by Super Admin.

  Note: fCart user import/export data could be useful here for Archive purposes or a Customer request - this is a case where a customer doesnt have WP account created at all.

• How to remove/change fCart role from WP user (user has account with) that is displayed in a User profile (ex: Subscriber). User doesnt have any role in the fCart Manages list but previously could have such a role and it was removed (for some reason role was not removed from that WP User profile).