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.
Sure. That's possible by going to our Pricing Page: http://www.jotform.com/pricing and clicking upgrade button inside the plan you want to subscribe. Make sure to provide the important details such as your account Username and Email Address, when ask.
You can upgrade a single account then attach the Free Users as Sub-Account. For adding sub-account, check this guide: How to Share Forms with a Sub-Account User