conditional email based on radio button

Hi
I want to send conditional email based on radio button option selected.

Here is my code:

[radio radio-530 id:rad-show default:1 “Direct Bank Transfer|[email protected]” “Paypal|[email protected]”]

Now i want to send two separate emails to the [email protected] based on the option selected.

Eg:

If direct bank is selected, email ‘i am bank transfer’ should be sent and vice versa.

But it is sending both emails.

Please advise
Thanks

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