as you have simple one time payment integrated with website, i will implement recurring payment, after each month payment will be made automatically, if desired balance in paypal is not suffient for next recurring payment, then email will be sent to user and also user status changed to normal mode as payment is not done.
i have done recurring payment for several website, i can do this job in one day.
I m expert web developer, i have seven year of work experience , my expertise are PHP, MYSQL, WORDPRESS,JOOMLA, CODEINGITER, OPEN CART, CUSTOM CMS, CSS,HTML,JQUERY,AJAX AND CSS.
i m ready to start this job right now
regard
ajmal