myCred App+ Integration

Backend Check and Deduct.php

// Once the appointment is confirmed, then process the myCreds.
add_filter('app_post_confirmation_status', 'confirm_manual_payments',10,5);
	function confirm_manual_payments($status, $price, $service, $worker, $user_id) {
      	if("pending" === $status || "confirmed" === $status) :
      		global $wp, $current_user;
				$mycred = mycred();
				$current_user = wp_get_current_user();
				$balance = round($mycred->get_users_balance( $current_user->ID ));

				if ( $balance > 0 ) {
					$mycred->add_creds('appointment', $current_user->ID, -1, '1 %plural% deduction for Appointment Booking');
				}
				// If he somehow hacked around the front end and got through, then put his appointment as pending and get admin to take a look
				else{
				$status = "pending" ;
				}
	    endif ;
	return $status;
}

myCred Pre Confirm Check.php

add_filter ('app_pre_confirmation_reply','myCred_check') ;
	// Check if the user has balance, if he has go ahead and do nothing.
	function myCred_check($ret) {
		$script = "" ;
			if ( function_exists( 'mycred' ) ){
				global $wp, $current_user;
				$mycred = mycred();
				$current_user = wp_get_current_user();
				$balance = round($mycred->get_users_balance( $current_user->ID ));
					// If no balance then throw alert and hide the confirm button
					if ( $balance <= 0 ) {
		   			$script = <<< myCredCode
		            <script type="text/javascript">
		            jQuery(document).ready(function($) {
                                alert("We cannot confirm this lesson as you have no credits remaining. Please buy additional credits before scheduling a lesson");
		                jQuery( ".appointments-confirmation-button" ).hide() ;
		            })
		            </script>
myCredCode;
					}
			}
			$ret['service'] .=$script ; 
  	return $ret ;
}

hey
its not working right on my site maybe u can give me a Hint.
What i need for this code and where i should put it in