protected function commit_user() {

		$args = array(
			'plan' => $this->plan,
		);

		$user_id = get_current_user_id() ?
			llms_update_user( $this->data, 'checkout', $args ) :
			llms_register_user( $this->data, 'checkout', true, $args );

		if ( ! is_wp_error( $user_id ) ) {
			$this->student = llms_get_student( $user_id );
		}

		return $user_id;

	}