Configure Lead page optin form, redirt to another optin form on wordpress multi step form

I have a landing page on a platform called Instapages, it is like get response or leadpages. I have a webpage with an optin form designed in wordpress. When someone fill out the optin form on lead pages by entering there first name last name email address phone number, and click submit.... The contact info needs to be redirected to the wordpress form so they don't have to re-enter the same info twice.