Does Klarna need your restricted passcode because your site is not live?
Hi @ds_4177 ,
Klarna merchant support (http://klarna.com/merchant-support) sometimes requests collaborator access to a store to support with merchant initiated support requests regarding Klarna On-site messaging app, including accessing the online store theme and the storefront. If the online store is password protected, Klarna may need the online store password to review the on-site messaging in your storefront.