tenkabuto

/*
  Only let level 1 members sign up if they use a discount code.
  Place this code in your active theme's functions.php or a custom plugin.
*/
function my_pmpro_registration_checks_require_code_to_register($pmpro_continue_registration)
{
  //only bother if things are okay so far
	if(!$pmpro_continue_registration)
		return $pmpro_continue_registration;

tenkabuto

/*
	Redirect away from the checkout page if you don't have a required level.
*/
function my_template_redirect_upgrade()
{
	global $pmpro_pages, $pmpro_level;
	
	if(empty($pmpro_pages))
		return;