Not able to make or receive calls or send messages

This is the 2nd day where I have been unable to make or receive any phone calls on my cell phone. I have phoned the call centre over 5 times and no one has been able to help me. This complaint has been Escalated to CIC dept. Please can somebody fix this problem NOW or let me know what is wrong and why this has happened as I find this completely unacceptable!!!!!<br> Reference number for escalated problem to CIC Department: S3-80PD2-2UAZ