My Thank You Page from an Embedded Iframe is opening in the iframe window instead of full page.

My Thank You Page from an Embedded Iframe is opening in the iframe window instead of full page. It was working correctly until I tried adding another option to the main form. I decided it wasn't needed and removed it. I've been having all kinds of problems since. I think I have resolved all the problems but this.

Thanks! 

I'm not sure how that could work before since when you submit the embedded form, the main form is still not submitted.

I just did a test submission in your form and the same response I got, I'm not sure how it worked for your before. Maybe you saw the Thank you page when you choose the pay online option so you were redirected after paying through PayPal?