Can I upgrade to the Bronze and change to the Silver?

I don't know if I need the bronze or silver plan.  Can I upgrade to the Bronze and in the next few days change to the silver and pay the difference?  

Hello,

If you want to change your plan in a short time period, you can do it however, you are not able to pay the difference like that. You can change your plan from Bronze to Silver with 2 different ways as the following:

First way: After upgrading your plan from Free to the Bronze, if you prefer to change it to the Silver plan in the next days, you can downgrade your account to the Free plan again, we can refund your money back. After receiving the refund, you can upgrade your Free plan to the Silver. 

Please check the following guide related to downgrading your account to the Free plan: https://www.jotform.com/help/341-How-to-Downgrade-Subscription-Back-to-Free-Account 

Second way: after upgrading your plan from Free to Bronze, you can upgrade your Bronze plan to the Silver on the pricing page of your account. After paying for the Silver plan, you will be double subscription. We will refund your money of the Bronze plan if you use Bronze plan less than 30 days.

If you need any assistance, do not hesitate to contact us.

Thanks.