What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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 opened your form and did a test submission. It was successful, it redirected me to the Thank You page after submitting the form. Here's a screenshot:
If it is still the same, please provide the URL of the webpage where the form is embedded so that we can further investigate.
Hope that helps. Thank you.