Hi there, I'am Mahmudul Hassan.
I have checked your requirements. We have to change existing code as well as we have to add a new script that will run in cron job. This will check user membership and membership status will be changed after 24 hours.
I am ready to start now.
I am an individual and professional experienced in PHP, MySQL, Javascript, Bootstrap, Opencart, CodeIgniter, Cakephp, yii and WordPress.