Hi alfre2v , sorry for the confusion.
Our staff will follow up with you in your support ticket via email to figure out what happened, but just to make very clear for other readers: Kagi does not have anything to do with email, payment, or SMS verification.
Any billing or identity-related process that happens on stripe.com is handled entirely by Stripe, Kagi does not have any hand in it. We don't receive your number, we will never text you anything. Stripe may do this if you are doing something like re-using payment details with them that you entered on another platform, for example, via their Link feature.
Please give our staff some time to review your account and see what possibly could have gotten mixed up 🙂