I have the following code which I do not have access to.
What I want to do is add some text into the first option which is now empty. Text such as \"Select Address\
$('select[name=My_Saved_Billing] > option:first-child')
.text('Select Address');
If you want to find the empty option(s), not just the first one, use:
$('select[name=My_Saved_Billing] > option:empty')
// or
$('select[name=My_Saved_Billing] > option:empty:first')
To get the option with specific content, use:
$('select[name=My_Saved_Billing] > option:contains(texthere)')