Load different pages, dependent upon radio button selection

I’m using the Additional Setting box in CF7 to load a new page on form submission.

Code is as follows: on_submit: “location = ‘https://batas.org.uk/membership-payment/’;” and the form features a radio button with five options. This URL only really applies to the first two.

Does anyone know how to edit the code so that it only takes users to this URL if they select the first or second radio buttons?

Thank-you experts!