<script>
$('#acf-field-YourSelectField').on('change', function() {
document.getElementById('TheIdOfTheDivYouWantToShowTheSelectedValue').value = $(this).val();
});
<script>
Then i set up my ACF select options in my group like so.
[email protected] : Supplier A
[email protected] : Supplier B
[email protected] : Supplier C
[email protected] : Supplier D
The Javascript will return the email address and not the Supplier A.
You can now use the new found value and echo it in a form recipient.
Hope this helps someone.