How to get test credentials for the version 3 of Klarna Checkout API?

Extensions Klarna
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1

According to the instruction for getting credentials for the version 3 of the Klarna Checkout API, you need write to usa@klarna.com:

If you have questions or want to sign up with Klarna please email our sales department at usa@klarna.com.

2

Looks like the usa@klarna.com email address from the official Klarna instruction is broken:

Hello admin@mage2.pro,

We’re writing to let you know that the group you tried to contact (usa) may not exist, or you may not have permission to post messages to the group. A few more details on why you weren’t able to post:

  • You might have spelled or formatted the group name incorrectly.
  • The owner of the group may have removed this group.
  • You may need to join the group before receiving permission to post.
  • This group may not be open to posting.
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    If you have questions related to this or any other Google Group, visit the Help Center at Groups - Google Workspace Admin Help.

Thanks,

klarna.com admins

3

I have got an answer from Klarna support:

The only way to get a US test account is through the web form here: Klarna for business | Klarna US
Click the ‘I’m in. Get in touch!’ link and fill out the form and the US Sales team will be in touch and take you through the process of setting up a test account.

4

Nobody answered me in 2 months.
Next try: