Klarna On‑Site Messaging

I have been trying to contact Klarna for well over a week now sending multiple messages to their support email. I try to sign into my karma account to finish setting it up and place the klarna sticker on my store so people know they have that option but I can't seem to get signed in to the klarna merchant portal to get help every time I try it says the password I set up is incorrect when it's not I've sent meant emails to get a password reset or any help at all on this matter with no response ever. How do you expect people to use this app when there is a option for help but no one checks it or contacts me to help me with the issue at hand

Doesn't work anymore,everytime open it just say"An error has occurred".
No app block and be added in editor and even use the code snippets" " ,just flash the blurry klarna icon then gone?
Update:
A few weeks ago, they contacted us to manually install the code properly using the collaboration account. One star was taken away because of the late reply.

You used to be able to edit css of the element but for some reason it doesn't work with this app anymore.

If they make it so that you can add custom css to the element again I will change the review to 5 stars but for now its pretty bad

It worked fine for some weeks but now has everything became
invisible for some reason. There are hard to get support! I have tried all of the guidelines without any solution. When you click on customize theme are they still there but not displaying. No where to find support, I send a email to skosm@klarna.com without any response

Was working for a while but has now stopped working completely and does not appear on the product pages as before. No idea what has happened, very unstable app.