My WordPress embedded payment form is not updating the Total amount, but it works in preview

Also, the Total doesn't update on Wordpress... even though it works in the Jotform preview. Also I can't change the language of my form and cannot open the calendar (all of this work on the Jotform website but not on Wordpress, which is quite strange)

Based on what you have mentioned the issue is most likely caused by the conflicting codes on your website, so you should try to embed your jotform by using the iframe embed code. You can do this by following the next steps: How to get the jotform iFrame Code

Do let us know how it goes.

Now it works, thanks Ben!

On behalf of my colleague, you're welcome.
Feel free to contact us anytime, should you require our assistance.