HI there,is the only way to see a form someone has filled in either via

HI there,

is the only way to see a form someone has filled in either via a spreadsheet (with info from all submitted forms) or via the autorespond email?

Also, i have set up my integration so a Trello card is automatically created but I haven't yet been able to get it to work..

You can see the submitted forms from the Submissions page. You can check and follow this guide:

https://www.jotform.com/help/269-How-to-View-Form-Submissions

Which form are you trying to setup with Trello? What happens when you follow the guide and try to setup the integration?

We will wait for your response.