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.
According to the other thread you opened: https://www.jotform.com/answers/1093295. You're asking why your client cannot submit multiple entries.
You need to disable the Unique Submission by choosing the No Check in the drop down menu. This will let your client submit as many times as they want in one computer. Here's how to disable it:
1. Open your form and go to the Settings section page. Select the Form Settings tab and click the Show More Options button.
2. Under the Unique Submissions, select the No Check option in the drop down menu.
Here's a guide: How-to-Set-Unique-Submissions-on-a-Form
Hope that helps. If you have questions, please contact us again. Thank you.