Disconnect the payment provider of a NIF

Disconnects the payment connection named by {connection_id} of a company that your account owns or manages.

• Effect: BeeL deletes the stored credentials and auto-invoicing stops at once; charges arriving afterwards are ignored and produce no invoice. Already-issued invoices are not affected.
• The provider-side authorization is not revoked: to withdraw it, the holder must remove BeeL's access from the provider's own dashboard (in Stripe, Settings → Connected applications).