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I see that you're using a guest account, I suggest that you sign up for a free account in order to increase your monthly submissions limit and also receive useful information about our system.
Regarding the issue with the conditions in your form, I assume you're referring to the ones below:
I presume that you want to update the Email Alert dropdown in your form based on the selection made on the radio field. If that's the case, I suggest that you change this drop-down for a text box so you can insert text in it directly.
Also, you would need to hide it (right-click the text box and click on "Hide Field") so it cannot be edited when the form is shown.
Let us know if this helps.