Hello @jes,
Welcome to the Klaviyo Community!
Sorry to hear that this happened to you! A Klaviyo account can be disabled for a variety of reasons. As such, we highly recommend reaching out and speaking with our wonderful Support colleagues who can better investigate the issue.
The most common reason an account would be disabled would be caused by a routine account verification check as explained in our About Account Verification Help Center article. This has also been mentioned in previous Community post which I’ve included below as well:
Our Support colleagues should be able to point you in the right direction by taking a closer look into your account details! If you’re having troubles logging in and using any of the in app method (email or chat), you can also fill out our request form found here to contact our colleagues.
I hope this helps and have a great day!
David