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 have checked the form(s) in your account and the only page break that doesn't show the "back" button is the one in the first page which is normal.
Do you have any specific form where you're experiencing such issue?
With regards to centering the buttons, we can inject CSS codes to your form to achieve that. Can you tell us which form on your account do you want the Back and Next button centered, please?