Very Pressing Please Help

First and foremost, thanks alot for giving out such an amazing theme for absolutely free of charge 🙏 you’re genius, thanks so much

I’m currently working on a client site and he ask me to change the “post a comment” text to “place a bid” have tried several codes

function change_comment_form_submit_label($arg) { $arg[‘label_submit’] = ‘Post a Question’; return $arg; } add_filter(‘comment_form_defaults’, ‘change_comment_form_submit_label’, 11);

but all to no avail, could you please help me out please 🙏it’s so frustrating please help thanks in advance, hoping to hear from you