account_has_billing_history

HTTP status	409
type	conflict
code	account_has_billing_history
Default message	This account can't be deleted while it has billing history (redeemed coupons, created coupons, or Stripe checkouts).

When this happens

You asked to delete your account, but it carries billing history — redeemed coupons, coupons you created, or completed Stripe checkouts. Deleting the account would orphan those financial records, so the API refuses.

How to fix it

Contact support to close an account with billing history. Support can reconcile or archive the records and then complete the deletion.