Get the text value of a dynamically populated select field

I have a select field in CF7:

<label>Options[select* options]</label>

I have a ton of options that will change in the future, so I populate the select options dynamically with jQuery.

jQuery.each(options, function (val, text, index) {
jQuery(‘select[name=”options”]’).append(jQuery(‘<option> .
</option>’).val(val).html(text.options))
});
When I come to send the mail, CF7 is rightly just echoing the index of the option selected, rather than the text, but this is not what I need.

[options]

Can I get more info out of that simple options shortcode? I don’t want to use the Listo plugin but I’m happy to add custom functions if I need to.