Add 3 feature to our SMS software

This is a very easy project. Add 3 Features to our SMS software system. #1. I need to create a "Do Not Contact List". If the system receive the word "Stop", the system will add and/or move that number from the phone-book to the "Do Not Contact List" and the user can not send any text message unless the admin (me) remove from the "Do Not Contact List". #2. I need to create a feature our sms system send automatically a Happy Birthday text message to all the contact appear in the phonebook based on the Date Of Birthday as appear on the phonebook. #3. If the user have less than 25 sms credits, our sms system will send automatically a text message reminder: "Your account have less than 25 text messages, please recharge. Thanks for using our services". Our system it is php, mysql, apache i.e. lamp stack based ***NO HIDDEN FEES AFTER SELECT A PROGRAMMER*** ***NO SURPRISING FEES WILL BE ACCEPTED*** ***NO SKYPE*** ***We need a Clean Job, a Professional Grade Job !! ***We need the entire job done in 5 business days. My Budget FOR OVERALL PROJECT is $55 (USD), I will take the person with the most interesting bid content, reviews and $ offer. We will have more jobs and pages if this job is successfully accomplished. Suggestions are welcome. Any questions are welcome. Thanks and happy bidding!