JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I am assuming that you are using Danish version of JotFrom builder and when you tried to load Stripe payment tool word Credit Card is not translated. We will escalate this to our developers because now this translation can not be handled manually. You'll be notified here once they have a response for you.
In meantime you can try creating multilingual forms. Please check this guide.