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If I understand correctly, you have an X form, when the submitter send this form completed, you have to send them a link with the survey form for them to fill out and submit again?
If this is the case, you may go ahead and customize your "Thank you page", in order that when your customer click on submit, will automatically redirected to the next form, the survey.
Inside this guide you will find a step by step instructions: http://www.jotform.com/help/211-Setting-Up-the-Thank-You-Page
This guide is also helpful: http://www.jotform.com/help/26-Creating-a-Form-Autoresponder
I hope this information helps to solve that issue.