Alexa,
I can’t get that page to load, so I couldn’t check what you have. But what that line is intended to mean is that the purchaser needs to click there to add their credit card details. I agree that it isn’t particularly well worded, and I change it on my own sites. You can do that too by adding the following code (modified to your preference) to your (child) theme’s functions.php
file:
function kts_text_context_changes( $translated, $original, $context, $domain ) {
if ( $domain == 's2member' && $context == 's2member-front' ) {
if ( $original == 'Add Billing Method' ) {
$translated = 'Click to enter your credit card details';
}
}
return $translated; // return modified text
}
add_filter( 'gettext_with_context', 'kts_text_context_changes', 10, 4 );