US:

About Klarna：https://www.klarna.com/us/what-is-klarna/

Klarna Customer Service：https://www.klarna.com/us/customer-service/

UK:

About Klarna：https://www.klarna.com/uk/smoooth/

Klarna Customer Service：https://www.klarna.com/uk/customer-service/

DE:

About Klarna：https://www.klarna.com/de/jetzt-kaufen-spaeter-bezahlen/

Klarna Customer Service：https://www.klarna.com/de/kundenservice/